PS:
1 - the "cause i'm so far behind" part, i added an A key, 'cause i didn't wanted 
the G key to sound boring. ;)
2 - i'm not so sure about the "and while i'm able" part, sorry.
3 - Bm7/F# would sound better this way:
e |---2---|
B |---3---|
G |---2---|
D |---4---|
A |---4---|
E |---2---|
----//----
D
I was thinking, over thinking                                   
                     Bm7/F#
'cause there's just too many scenarios to analyze, look in my eyes
Bm				          G- 	G-
'cause you're my dream please come true
D
I was thinking, over thinking
						  Bm7/F#
about exactly how I'm not exactly him, I'll break my heart in two
much worse than you could ever do
Bm 					G-     G-
'cause you're my dream please come true
D                                   A
'cause I think way too much, on a one track mind
Bm                            G              A
and you're so out of touch, 'cause  I'm so far behind
G                         D                      A                        Bm
I can't deny this anymore, the facts ignored all done before
		 G			D
and if there's one in this world,
		A			G (let ring)	
you let me know you're not that girl
D
I was sinking, lower sinking
					  Bm7/F#
'cause I lost the things I held on to, they let me think a thought
a thought that I would know was not
Bm                         G-     G-
of seeing my dream come true
D
I was thinking, over thinking
				      Bm7/F#
about how I could let you know, there's nothing more to say
I know now you're just in the way
Bm                            G-    G-
of me and my dream come true
D			      A				   Bm
'cause I think way too much, on a one track mind
			   G					   D
and you're so out of touch, 'cause I'm so far behind
			A				Bm
I'm trying to make sense, out of all of this
			G      A
While your fading scent, just slips through my grip
G                         D                      A                        Bm
I can't deny this anymore, the facts ignored all done before
		 G			D
and if there's one in this world,
		A			G (let ring)	
you let me know you're not that girl
D		A		Bm       G	
don't touch the positive with the negative end
D		A		Bm       G	
don't touch the positive with the negative end
D		A	    Bm			   G	
'cause after all of the sparks you're still alone in the dark
D		A	     Bm		   G		    A#  Bm
'cause after all of the sparks you're left alone in the dark
A	        
and while I'm able, 
E
I think I'll label
D		      E
experience with you as a mistake
A		
and while I'm at it, 
E
I'll say I've had it
D		     E			A
experience with you is a mistake
D			      A				   Bm
'cause I think way too much, on a one track mind
			   G					   D
and you're so out of touch, 'cause I'm so far behind
			A				Bm
I'm trying to make sense, out of all of this
			G      					D
While your fading scent, just slips through my grip