Friend I am sorry to say and my answer might hurt you also, but don’t you think your lover did the right thing?
Girls have acute sixth sense. They read you like a book. Inbuilt in them by birth.
Does she deserve such a loser who lost his head over a girl and left everything behind?
Be brave my boy. Get a purpose in life. Show her that she lost something valuable. Do not do this to prove her right!
Pro Secret: Girls often return to guys who are strong and could live without her peacefully. Get up, go out and be strong. Your strength is your last chance.
Do not do this to prove anything to her but to prove your self to you.