Intro:

E|--------------------------------------------------------|
B|--------------------------------------------------------|
G|---------------------7-7-7-7-------------------7-7-7-7--|
D|---7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7--|
A|---7-7-7-7-7-7-7-7-7-5-5-5-5-7-7-7-7-7-7-7-7-7-5-5-5-5--|
E|---5-5-5-5-5-5-5-5-5---------5-5-5-5-5-5-5-5-5----------| play this part 2x

i think this part is played by the keyboard, but here it is anyways.

E|------9-9-9-12-9-9-9-9-12-9-9-9-7-------9-9-7--------|
B|---------------------------------10-7-10-----10-7-10-|
G|-----------------------------------------------------|
D|-----------------------------------------------------|
A|-----------------------------------------------------|

E|-----------------------------------------------------------------|
B|-----------------------------------------------------------------|
G|-----------------9-9-9-9-9-9-9-9-4-4-4-4-4-4-4-4-7-7-7-7-7-7-7-7-|
|-7-7-7-7-7-7-7-7-9-9-9-9-9-9-9-9-4-4-4-4-4-4-4-4-7-7-7-7-7-7-7-7-|
|-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-7-2-2-2-2-2-2-2-2-5-5-5-5-5-5-5-5-|
E|-5-5-5-5-5-5-5-5-------------------------------------------------|
it changes it up a bit. But it's super easy to figure out. I did.

Verse:
E|---------------------|
B|---------------------|
G|-------6-6-6-7-7-7-7-|
|-7-7-7-6-6-6-7-7-7-7-|
|-7-7-7-4-4-4-5-5-5-5-|
E|-5-5-5---------------|

"I hadn't met you, from what I heard I heard I thought I had..."
The strumming is pretty simple. 

E|---------------------------------------------------------------------|
B|---------------------------------------------------------------------|
G|-----------6-6-6-6-6-7-7-7-7-7-7-------------------------7-7-7-7-7-7-|
|-7-7-7-7-7-6-6-6-6-6-7-7-7-7-7-7-7-7-7-7-7-7-9-9-9-9-9-9-7-7-7-7-7-7-|
|-7-7-7-7-7-4-4-4-4-4-5-5-5-5-5-5-7-7-7-7-7-7-9-9-9-9-9-9-5-5-5-5-5-5-|
E|-5-5-5-5-5-----------------------5-5-5-5-5-5-7-7-7-7-7-7-------------|

"you don't play games, you make mistakes"

Chorus:

E|--------------------------------------------------------------------------|
B|--------------------------------------------------------------------------|
G|------------9-9-9-9-9-9-7-7-7-7-7-7-7-6-6-6-6-6-6-6-6-4-4-4-4-4-4-7-7-7-7-|
|7-7-7-7-7-7-9-9-9-9-9-9-7-7-7-7-7-7-7-6-6-6-6-6-6-6-6-4-4-4-4-4-4-7-7-7-7-|
|7-7-7-7-7-7-7-7-7-7-7-7-5-5-5-5-5-5-5-4-4-4-4-4-4-4-4-2-2-2-2-2-2-5-5-5-5-|
E|5-5-5-5-5-5---------------------------------------------------------------|
"oh what a day, oh oh what a day, I can't stop thinking of you."
then play intro again

Same for second verse and chorus.

Bridge:

E|---9-12-14-9-9-9-9-9--|
B|------------7---7---7-|
G|----------------------|
D|----------------------|
A|----------------------|
E|----------------------| play as many times as it's played.