I have a serious sex life issue...?

[Mort]

Ok so im a girl, im 24 yrs old. So I have a boyfriend who is also 24 yrs old. Over spring break I had super hard core sex with a girl and cheated on my boyfriend. While I was cheating, the girl who i was having sex with, her girlfriend walked in while we were having sex and got sooooooo pissed. She was throwing crap around the house and breaking things so i just ran out. I never saw those girls again and never told my boyfriend about this whole thing. But apparently the girls' girlfriend found my boyfriend about what happened, and in order to get even with me and the girl i cheated with, my boyfriend and her girlfriend had sex. After this, my boyfriend took me and threw me into his car and raped me to make me more faithful to him. He didn't stop having sex with the other girl though and i eventually heard that my boyfriend convinced my 15 year old sister to join them and have a 3some with them. While all this was happening, i was still having sex with the other girl. When i heard about my whole sister thing, i decided to take the girl i was having sex with and walk in on their 3some to bust them. When we got there, the 5 of us argued for a while, but then we all made up, and it ended up in a hadcore sex session in a 5some... it was me, my boyfriend, the chick, her girlfriend, and my sister all having sex... is this whole thing a big deal? like is it a problem?