what happens to a guy in a fraternity who lies to his own fraternity

[gem_star17]

im sorry if this violates some sort of brotherly code, but ive really been wondering this for awhile: what happens if a guy lies to his own brother about his personal life? i ask because my younger sister has this boyfriend in a fraternity. this kid is a real piece of work. for the past year and a half, he has been dating my younger sister. he is in the same fraternity as my boyfriend- i set them up little did i know he had issues. for the past year, he has been basically trying to make it seem as if my sister is madly inlove with him and that hes just tolerating her. i dont know why she put up with it but i decided not to meddle because she seemed happy and i figured, everyone mustve known the truth, anyway. well to make a long story short, it wasnt a joke. they got in a fight, over the summer and since then he has tried to make my sister look like some sort of stalker. and people believed him. my sister tried to break off contact with him and instead of being "glad", he kept calling her. finally, she went to our school's judicial affairs and the little psycho went to the cops and tried to make it seem like she was stalking him. long story short, she agreed to get back with him because he promised to change. but hes still telling people she was stalking him and the only reason he is dating her now is because the events of the last few months have made him fall in love with her. she doesnt know this, because my boyfriend convinced me not to get involved because itll just cause problems. problems for who- him? why not? what would happen if everyone learned the truth about this kid??
people dont realize, im kinda the crazy one.not her. everytime i see him and i listen to people refer to her as "the stalker who got lucky" i just want to hurt him.