My sister slept with my child's father!!!

Only if you knew us? Me and my sister had the best relationship ever and then she stabs me in the back by sleeping with my boyfriend. She knew everything about us and how I felt about him. I loved him so... much. The bad part is that they still talk and I think he still has sex with her. They claim they got drunk and accidentally slept together but the second time they were aware. And I know its been more than twice.

My sister has a history of trifling sh*t but I didn't think she'll do it to me.I miss him and her. Then we were together for two years! And I had his child!And then she is going on 23 and he's going on 17

Do you think she is just sex?

Do you think he really loves her?

Will it stop?

Could I ever be back with him ?

Could I ever trust him and her again?

Do you think she was jealous of me ?
My sister slept with my child's father!!!
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