I hope you won't mind if i say... the guy is trying to act cool and stuff, and you're the one paying the price....
about your concern, it's easier said than done to forget somebody, especially if that person is someone special. It's near impossible to forget someone that has been a part of your life, but i think what you must do is not to forget that person, but rather, learn how to live with the fact that that person is not with you anymore.
On a side note, please open your eyes and realize that the guy might just be playing with you.
Just my 2 cents...
