This is just a minor change from the tab posted by MetalMatt93
I've included the key change in the beginning of the bridge.
[Verse 1]
D A D G
Your love is like finger nails on a chalkboard
D A D G
Your love is like throwing myself overboard
D A
A breakdown on a motorway
Bm G
A heart attack on Christmas day
E
Like scaling a cliff then falling off
G
Like trying not to cough
[Chorus 1]
G F#
And I didn't see this one coming, now I'm in too deep
G F#
I didn't see this one coming, now I'm in too deep
G D
I think I'll just keep swimming down, down, down
G D
There's no point in trying to turn back now
Em F#m G A
I'm drowned, I'm drowned
[Verse 2]
D A D G
Your love is like sand inside a bathing suit
D A D G
Your love is a symphony with the sound on mute
D A
A letter sent to the wrong address
Bm G
Or red wine on a wedding dress
Em
Like broken bones in my playing hand
G
Like trying to swallow sand
[Chorus 2]
G F#
And I didn't see this one coming, now I'm in too deep
G F#
I didn't see this one coming, now I'm in too deep
G D
I think I'll just keep swimming down, down, down
G D
There's no point in trying to reach dry ground
Em F#m G A
I'm drowned, I'm drowned
[Bridge]
Bm A G
Your love is like one last breath of salty air
Bm A G
Your love is like a map that leads to nowhere
D A
A wine glass on a concrete floor
Bm G
The overuse of metaphor
E
The straight ahead in a sideways glance
G
Like the misstep in a dance
[Chorus 3]
G F#
And I didn't see this one coming, now I'm in too deep
G F#
I didn't see this one coming, now I'm in too deep
G D
I think I'll just keep swimming down
G D
There's no point in turning round
Em F#m G D
I'm drowned, I'm drowned