i cheated on my ex-boyfriend after a month of dating.. it was with a friend's friend on a night of wild drunkenness.. when my ex found out, i begged him for forgiveness and we went out for another year and a half.. finally, he said he wanted to see other people and we broke up.. now, we're both "in a relationship" with other people but we still sleep together once a week.. the truth is i'm still in love with him and cheating on him was the biggest mistake of my life.. i kinda feel bad for his current girlfriend but it's the only way i can be with him because he could never trust me again.. as for the guy i'm seeing now, he's just someone i'm using to get my ex off my mind.. this has been going on for almost 2 years now.. he lives with his sister who is friends with his girlfriend.. his sister knows about our affairs after inadvertently catching me a few times sneaking out of their apartment the next morning.. i'm half hoping his sister would one day be filled with so much guilt that she suddenly confesses our secret to his girlfriend.. although deep down i know we're really over, i sometimes still wish we could be together again.. the year and a half we went out was truly the happiest time of my life...