This is how i play it hope it helps  

           G                   D
Sitting at home, I turn on the t.v
               C                      D            
It's all reality, and i don't want to watch stupid people
           G                     D
Got my phone, I check the text between
                C                   D              
Between you and me, cus I guess you popped into my head
    Em           D         C
And it shouldn't be Friday night
       Em
Why am I,
C          D
Here home alone when



Chorus:
G                      D
We can runaway for the weekend
              C                            Em          D
but I'm here alone, wish you'd go throwing rocks at my window
G                                  D
We could count the stars from your car hood
              C                            Em          D
But i'm here alone, wish you'd go throwing rocks at my window

G
ba ba ba da ba ba
D
ba ba ba da ba ba
C
ba ba ba da ba ba
         Em          D
Throwing rocks at my window

Verse 2:
G                              D
Baby it's been, far too many movies
             C                 D
Sinking into me, so now i wait for my prince charming
G                                D
But iv'e got, this picture in my head
                      C                        D
Of the chapel for our wedding, so i guess that iv'e got it bad
Em            D    C
Just one step at a time
       Em
Why am i,
C          D
Here home alone when

Chorus

G                      D
We can runaway for the weekend
              C                            Em          D
but I'm here alone, wish you'd go throwing rocks at my window
G                                  D
We could count the stars from your car hood
              C                            Em          D
But i'm here alone, wish you'd go throwing rocks at my window

G
ba ba ba da ba ba
D
ba ba ba da ba ba
C
ba ba ba da ba ba
         Em          D
Throwing rocks at my window

(Play G,D,C,D over rap)

Chorus:
G                      D
We can runaway for the weekend
              C                            Em          D
but I'm here alone, wish you'd go throwing rocks at my window
G                                  D
We could count the stars from your car hood
              C                            Em          D
But i'm here alone, wish you'd go throwing rocks at my window

G
ba ba ba da ba ba
D
ba ba ba da ba ba
C
ba ba ba da ba ba
         Em          D
Throwing rocks at my window

G
ba ba ba da ba ba
D
ba ba ba da ba ba
C
ba ba ba da ba ba
         Em          D
Throwing rocks at my window