sun_shine,

I am not aware of the situation more than what you have explained in this thread. What i understood from your expressions was that the guy married another girl for his family and deserted you. Therefore, suggested you to hate him, as it is what you should do if he did that knowinlgy. Moreover, this is my belief that if someone is so much in love, there is nothing that can abide him to tie nut with someone else in consciousness. 

I am very sorry, if i misunderstood the entire scenario.

Anyway, this is just my opinion that loving him will make your days more miserable. Therefore you should try to concentrate on something else. Rest you know better. So please listen to yourself and do whatever makes you happy.

Happy new year 2009, wish you happiness and peace of mind.