To add on (forgot to put this on my original), the line
"I thought you loved me
I was wrong"
is also a reference to his "graduating". Upon a graduation from anything, the graduate is more educated then when they started. To me, this is a pretty obvious reference to her cheating on him, him finding out she was a gold digger, something along those lines.
He has found this out and now is more educated on what kind of person he is so he can now "graduate" from the relationship (leave her and move on).
To add on (forgot to put this on my original), the line
"I thought you loved me I was wrong"
is also a reference to his "graduating". Upon a graduation from anything, the graduate is more educated then when they started. To me, this is a pretty obvious reference to her cheating on him, him finding out she was a gold digger, something along those lines.
He has found this out and now is more educated on what kind of person he is so he can now "graduate" from the relationship (leave her and move on).