I REALLY Need Advise
So i'm kinda in a weird situation right now basically my play brother who I've known for about a year or so cheated on my play sister who i've known for about 3 years or so now the story is weird they knew each other first and were just friend and then i met my play sister and i swear i love her like she was my blood and then there is my play brother who i didn't even know he knew my play sister but he a special part of my life too i love that boy with all my heart so the two of them of been dating for about 3 months now and my play brother called me first to tell me what happen so according to him he got drunk and high one night and the next morning woke up next to a girl he didn't know he told me he didn't know what happen and when he asked the girl what happen she told him they had sex so he called me because he was afraid to tell my sister(brittany) what happen so he(jay) finally called her and right after that she called me and was pretty pissed off and i don't know what to do sure it's none of my business but they're both pulling me in two different direction i told them both i don't want to be in it but they don't listen they're both want me on their side and it's killing me because brittany want talk to him so she has me sending message back to him and he wants to talk to her but since she wont he tells me to tell her things which she doesn't want to hear most of the time and i know Jay was wrong but still he my brother and i don't feel right sitting up bad talking him with Brittany like she wants me to and it hurts because she's mad at me for the fact i can even still talk to jay and i told her that i don't know if i can just not talk to him any more because i don't feel it's right they both have other people the can talk to about this i don't know why they keep talking to me about it it's killing me you know what should i do i'm so lost