How could I stop thinking...

Don't bother to keep your self thinking of her cause one day she will open her doors in one of your dreams.

hiii there .. i am not that much experienced to say about these.... but wil say what i will do......i will sit with her for a nice dish she makes and will say during eating that . i like this food as you made even though you prepared it for another or Acted like it.......... then will see to her eyes and say that i still like this and you even though ......you still doesnt like meeeeeeeeee....... i think i did it once.........

make a distance from her, that is the only way to stop your feelings but i know u would still think about her. if you want to deny your feelings i guess that is the only way. and try to find another girl

Sweetie, you have 2 choices. Either you just stay her friend or you stay away from her. She need to decide if she wants to leave her boyfriend for you. Whatever you do, never push your luck, she might hate you for that. TATA.

well, it's one of those things that a guy has to ask himself. and be truthful to yourself when you decide on what to do..if you think that it's worth a shot, then maybe you should try and continue the pursuit. but if you think otherwise, you must have the strength & conviction to see it through.. if not, you might just end up mentally torturing yourself. and that'll be worst..

Does she realy like her new boyfriend or just to make you a little bit jealouse ? I think the best thing is to confront her with the truth and your true feelings towards her, because it's not a nice feeling to think that somebody likes you where in the mean while you (in these case her) a lot of affort to be notice and in the other one's eye's your just some nice person.