I made this tab from a bunch of Youtube Videos and with the hope that someone else 
will make better tabs, so feel free to critique.
Watching the videos will help too btw.

Chords Used:

E |-------------------3---3----------------------------|
B |--1---3----1-------3---3----------------------------|
G |-----------------------2----------------------------|
D |--2---3----2-----------3----------------------------|
A |--3---2------------2--------------------------------|
E |--x---x----x---3---3--------------------------------|
     C (x32010@1) G (320003@1) Am7 (x02010@1)G (320003@1)     F (133211@1)I use that weird F in the chorus and a regular barchord F in the verse

Intro
C-G-Am-G-F-G

Verse 1
C (x32010@1)       G (320003@1)           AmToss (x02210@1)and turning around
G (320003@1)          FHearing (133211@1)life's crazy sounds
    GOutside (320003@1)my window
C (x32010@1)       G (320003@1)          AmI'm (x02210@1)gonna stay here in bed
        G (320003@1)    FCovers (133211@1)over my head
     GI (320003@1)feel so tired

Prechorus 1
Em (022000@1)The world can wait for me
Am'Cause (x02210@1)the past few nights, I couldn't sleep
F'Cause (133211@1)I've been thinking about you lately
GDriving (320003@1)myself so crazy

Chorus
C (x32010@1)         EmPlease (022000@1)come back
AmI (x02210@1)want you here
FRight (133211@1)by my side
C (x32010@1)         EmOh, (022000@1)please come back
    Am (x02210@1)          F (133211@1)            COh, (x32010@1)girl, I need something to believe
Em (022000@1)Am (x02210@1)FSomething (133211@1)to believe

Verse 2
C (x32010@1)  G (320003@1)  AmIf (x02210@1)I only knew
       G (320003@1)   FHow (133211@1)to reach you
    GI'd (320003@1)grab your hand and...
C (x32010@1)      G (320003@1)         Amtake (x02210@1)you where you belong
       G (320003@1)     FHere (133211@1)inside my arms
               GHold (320003@1)you close, that's what I'd do

Prechorus 2
EmI'll (022000@1)just wait for you
         AmAnd (x02210@1)you could maybe make my dreams come true
              FOh, (133211@1)I've been thinking about you lately
    GThe (320003@1)thought of you makes me crazy