She fucking knew!

I am so pissed off rn I can't even type. My boy is at his first therapy session. So anyone who has been following my story knows my boyfriends friend Scott raped him at his bachelor party. I found out all of his friends knew what he was gonna do EXCEPT his best female friend. She left because they left her alone at a club. My boyfriend opened up to her about what happened. My boyfriend also told Scott's wife but she didn't believe him. His best female friend texted me saying did my boyfriend tell Scott's wife and I said yes but she didn't believe him. She showed me screenshots of a Convo between her and his wife. This bitch did believe him because she KNEW! Based on the texts she didn't know he was gonna do it, but he told her AFTER he did it and she said to my husband's best friend that she was worried he was gonna get in trouble and asked him did my boyfriend remember anything?! His best friend was playing along like she was on her and Scott's side so she could keep her talking. Because his wife was saying her and Scott haven't had much sex so it just lots a little control and how my boyfriend is bisexual anyway. So basically Scott told her what he did, she asked him did my boyfriend REMEMBER what happened and STILL married this sick fuck. I'm keeping EVERYTHING for whenever he gets ready to come forward he has some proof. Idk if it's a good idea to tell him right after his first therapy meeting though. The only friend being a real friend here is HER.