I agree, how can you ask how did she lost her feelings for you just like that!! well, it wasn't just like that dude!! you pretty much forced her not to love you anymore so let her go, or if you really care, give her some room like "aber" says. Read your own lines man, you sound so selfish, that whole message is about you, if she really really doesn't want you then let her go. You had your chance. We humans learn the hard way my friend, and we have to pay for what we do. Don't you try to make her feel Pitty for you either that will make things worse. As for your behavior... it seems you were possesed or something. Since we are all unknown here feel free to talk freely... is there something that you are not telling us? are you on drugs or something? you have not explained the reason for your actions, a "I don't know why" is never a valid answer you must know. Maybe you are too proud to tell?