Tuning: Eb Gb Db Gb Bb Eb (Can also be EGDGBE Capo 1, FG#D#G#CF no capo)
Capo: 2
Tabbed by josephm102
Thanks to matman97 for posting the first tab as it was an amazing starting point. Thanks to Dan for tabbing
put Bridge 2. 
Based on the My Parents' Basement Session of the song. https://www.youtube.com/watch?v=8frx1c56vXw
TUNING IS NOT HALF STEP DOWN. It is Half Step Down with the Ab tuned down to a Gb.
Tabs relative to capo, all 9s are 11s, all 4s are 6s, etc.
[Intro]
Eb|x-x--xxxx-x--xxxxxxxxxxxx------------|
Bb|x-x--xxxx-x--xxxxxxxxxxxx------------|
Gb|x-x--xxxx-x--xxxxxxxxxxxx------------|
Db|x-x--xxxx-x--xxxxxxxxxxxx------------|
Gb|x-x--xxxx-x--xxxxxxxxxxxx------------|
Eb|x-x--xxxx-x--xxxxxxxxxxxx------------|
Eb|--------------------------------------------------------------------|
Bb|--------------------------------------------------------------------|
Gb|--------------------------------------------------------------------|   3X
Db|9-9-9999-9-999-7-7-7777-7-777-5-5-555-5-5-555-4-4-444-5-xx-7-xx-----|
Gb|x-x-xxxx-x-xxx-x-x-xxxx-x-xxx-x-x-xxx-x-x-xxx-x-x-xxx-x-xx-x-xx-----|
Eb|8-8-8888-8-888-7-7-7777-7-777-5-5-555-4-4-444-3-3-333-5-xx-7-xx-----|
Eb|------------------------------------|
Bb|------------------------------------|
Gb|------------------------------------|   
Db|9-9-9999-9-999-7-7-7777-7-777-5-----|
Gb|x-x-xxxx-x-xxx-x-x-xxxx-x-xxx-x-----|
Eb|8-8-8888-8-888-7-7-7777-7-777-4-----|
[Build Up]
You're not real...
Eb|----------------------------------|
Bb|----------------------------------|
Gb|----------------------------------|2X
Db|9-------9-------------------------|
Gb|x-(x16)-x-(x16)-------------------|
Eb|9-------8-------------------------|
(post "Fuck")
Eb|--------------------------------------------------|
Bb|--------------------------------------------------|
Gb|9-------9-----------------------------------------|2X
Db|9-(x16)-9-(x16)-----------------------------------|
Gb|x-------x-----------------------------------------|
Eb|9-------8-----------------------------------------|
Eb|--------------------------------------------------------|
Bb|10-----12-----10-----12---------------------------------|
Gb|9------9------9------9----------------------------------|
Db|9-(x8)-9-(x8)-9-(x8)-9-(x8)-----------------------------| 2X
Gb|x------x------x------x----------------------------------|
Eb|9------9------8------8----------------------------------|
Eb|-12p10p0---------------------------------|
Bb|----------12p0---------------------------|
Gb|----------------12-----------------------|
Db|-----------------------------------------|
Gb|-----------------------------------------|
Eb|-----------------------------------------|
[Break]
Eb|x---xxx---x---xxx---x-------x--xxx-x-xxx--x-xxxxxx---------------------------|
Bb|0---000---0---000---0-------0--000-0-000--0-000000---------------------------|
Gb|x---xxx---x---xxx---x-------x--xxx-x-xxx--x-xxxxxx---------------------------|(x2, then x2 with a half time
Db|7---797---4---45x---1-------7--797-4-454--1-111111---------------------------| feel. Listen for timing)
Gb|0---000---0---000---0-------0--000-0-000--0-000000---------------------------|
Eb|-----------------------------------------------------------------------------|
                               .  ... . ...  
Eb|-----------------|
Bb|-0~--------------|
Gb|-7~--------------|
Db|-7~--------------|
Gb|-0~--------------|
Eb|-----------------|
[Chorus]
1. Main 
Eb|------------------10p0-10p0--------------|
Bb|------------------7p-0-7p-0--------------|
Gb|---------0h7--p0-------------------------|     (Use thumb to strum all open notes, tap everything else)
Db|----0h7/9--------------------------------|     (use both index fingers to tap on the last double stops.)
Gb|0----------------------------------------|
Eb|-----------------------------------------|
2. First
Eb|--------------------------------------|
Bb|-------------------7------------------|
Gb|----------------7p0-------------------| 
Db|----0h7h9----7h9----------------------|          I'm unsure if it's 0 on Gb or 8 on Eb.
Gb|0--------(0)--------------------------|
Eb|---------(8)--------------------------|
3. Break
Eb|-------------------------|
Bb|-------------------------|
Gb|-------------------------|
Db|-----99999999-55555555-5-|
Gb|-----xxxxxxxx-xxxxxxxx-x-|
Eb|-----88888888-44444444-4-|
4. Second
Eb|10p7p0-------------------------|
Bb|--------10p7p0-----------------|       
Gb|----------------9p7p0----------| 
Db|----------------------9--------|                       
Gb|-------------------------------|                       
Eb|-------------------------------|
CHORUS STRUCTURE
1. Main   3 times
2. First  1 time
1. Main   4 times
3. Break  1 time (looking down at me...)
1. Main   1 time
4. Second 1 time
1. Main   1 time
2. First  1 time
1. Main   4 times
3. Break  1 time (because you're an imaginary dog)
 
[Bridge]
Eb|5/7-777--2-2222222--5/7-777--11-11--------------------------------|
Bb|0---000--0-0000000--0-0-000--0--0---------------------------------|
Gb|x---xxx--x-xxxxxxx--x-x-xxx--x--x---------------------------------| (x4)
Db|7/9-999--4-4444444--7/9-999--13-13--------------------------------|
Gb|0---000--0-0000000--0-0-000--0--0---------------------------------|
Eb|------------------------------------------------------------------|
[Bridge within the Bridge to the other Bridge]
Because when I'm with you...
Eb|-------------------------------------------------------|
Bb|-------------------------------------------------------|
Gb|(9-9-9-9---7--777--5-555-555555)-----------------------|
Db|-9-9-9-9---7--777--5-555-555555------------------------|    (Notes in parentheses/on the high Gb string
Gb|-x-x-x-x---x--xxx--x-xxx-xxxxxx------------------------|     I'm not 100% sure are there)
Eb|-8-8-8-8---7--777--5-555-555555------------------------|
 
Eb|-----------------------------------------------------|
Bb|-----------------------------------------------------|
Gb|(9-9-9-9---7--5--4-444-444444)-----------------------|
Db|-9-9-9-9---7--5--4-444-444444------------------------|    (Notes in parentheses/on the high Gb string 
Gb|-x-x-x-x---x--x--x-xxx-xxxxxx------------------------|      I'm not 100% sure are there)
Eb|-8-8-8-8---7--5--3-333-333333------------------------|
Eb|--------------------------------------------------------|
Bb|--------------------------------------------------------|
Gb|(9-9-9-9---7--777--5-555-555555--5-5-55-5~)-------------|
Db|-9-9-9-9---7--777--5-555-555555--5-5-55-5~--------------|    (Notes in parentheses/on the high Gb string 
Gb|-x-x-x-x---x--xxx--x-xxx-xxxxxx--x-x-xx-x---------------|     I'm not 100% sure are there)
Eb|-8-8-8-8---7--777--5-555-555555--4-4-44-4~--------------|
   Oh Caitlyn...
Eb|------------------------------------------------------|
Bb|------------------------------------------------------|
Gb|------------------------------------------------------|
Db|7h9-99---4-44--4-44---7h9-99--1-11-1-11---------------|
Gb|0---00---0-00--0-00---0---00--0-00-0-00---------------|
Eb|------------------------------------------------------|
       ..     ..    ..       ..    ..   ..
Eb|------------------------------------------------------|
Bb|------------------------------------------------------|
Gb|------------------------------------------------------|
Db|7h9-99---4-44--4-44---7h9-99--1-xxxxxxx---------------|
Gb|0---00---0-00--0-00---0---00--0-xxxxxxx---------------|
Eb|--------------------------------xxxxxxx---------------|
       ..     ..    ..       ..    
[Bridge 2]
Eb|5/7-7----12-10---0----0---0-|-------0--|
Bb|0---0----0--0----0----0---0-|-------0--|
Gb|5/7-7----12-11---0h9--9---5-|-------5--|
Db|0---0----0--0----0h9--9---5-|-(x4)--5--|   This part would be too cluttered if I typed out each strum. 
Gb|0---0----0--0----x----x---x-|-------x--|   Listen for pattern and changes.
Eb|x---x----x--x----8----8---5-|-------4--|
[Arp Part]
Eb|---------------------------------------------|---------|
Bb|---------------------------------------------|---------|
Gb|-------9-------------------9-----------------|-9~------|
Db|-----9---9---(x2)--------9---9---(x2)--------|-9~------| 
Gb|---9-------9-----------9------9--------------|-9~------|
Eb|-9-------------------8-----------------------|-8~------|
[Outro]
Eb|---------------------------------12p10p0-----------x---|
Bb|-----------------------------------------12p0------0---|
Gb|----------------------------------------------12---12--|2X
Db|9-(x16)-9-(x16)-9-(x16)-9-(x8)---------------------0---|
Gb|x-------x-------x-------x--------------------------0---|
Eb|9-------8-------9-------8--------------------------x---|
************************************
| x  Dead note
| h  Hammer-on
| p  Pull-off
| /  Slide up
| ~  Let note ring
************************************