Hi, hello. This is my first tab so if I screw up, I'm sorry. It's all done by ear, but 
played it alongside the track several times and it sounds accurate, for the most part.

I've seen this tabbed down, but I dont really see the point in that, when you can play 
in standard so long as you use barre chords.
Chords Used:

Ab: 466544
Eb: x68866
Db: x46644

Intro:
e------------------------------------------------------||
B------------------------------------------------------||
G-----5------5-5--------5-----5-5-----5------5-5-----5-||
D------------------------------------------------------||
A------------------------------------------------------|| (then mute an Ab)
E--4-----4--------4------4--------4------4--------4----||

Verse 1:
Ab
Oh so the words have all been said
             Eb
The feeling's old but it's new to me

  I guess I'm scared to death but
Db
Oh I just love you
                 Ab
Oh I just love you

Ab
Telling my friends, "I gotta go"
              Eb
That I need rest
  But I'm running for the phone
    I think Casey knows but
Db
Oh I just love you
                 Ab
Oh I just love you

(For the next part, there's just a simple picking on an Ab barre chord for the first two 
of the bridge)
e--------4---------4--------4-------------4-6----||
B------4---4-----4---4----4---4---------4--------||
G------------------------------------------------||
D---6---------6--------6-----------6-------------||
A------------------------------------------------||
E------------------------------------------------||

A watch now on my wrist, a collared shirt
      Eb
And hair clean cut sculpted
                  Db
I'll iron out the flaws
 Come meet your new in-laws
  Oh here's the awkward pause

Ab
When I look at you,
                     Eb
I've caught myself off-guard a time or two
                        Db
Those funny times I realize that I've been staring
 Way too long and you're done talking
   Not to mention I've stopped breathing
(pause)
I'm such a mess

Ab
I'm rushing to open your car door
             Eb
You lean and open mine before
I can turn the key and
Db
Oh I just love you
                Ab
Oh I just love you

Ab
Calling to say hi on your break
              Eb
In less than twenty words you made
 My whole damn day and
Db
Oh I just love you
                 Ab
Oh I just love you

e--------4---------4--------4-------------4-6----||
B------4---4-----4---4----4---4---------4--------||
G------------------------------------------------||
D---6---------6--------6-----------6-------------||
A------------------------------------------------||
E------------------------------------------------||

In the coffee shop you sipped
                Eb
Your drink and we all sat and talked
                    Db
My mind it wandered off alone
 To find a thought as beauty
  Poured out when you talked
Ab
Stand still in my sight
               Eb
A switch got hit somewhere back in my mind
                   Db
Just then I realized there what I have
 To do, because I couldn't stand to look
   At you across another crowded room
     And know that you would not be mine (hold Db)

Oh time drags its feet
but somehow you sneak it past me
e-----------------------------------||
B-----------------------------------||
G-----5------5-5--------5-----5-5---||
D-----------------------------------||   (