(I made a new account in order to protect my privacy from family and friends and fellow Redditors, including the aforementioned, for this post. All names and details that are dead giveaways have been changed. )

I don't have many friends. I have two friends and one best friend. One of those friends (not my ride-or-die, lol) is a nowsenior in high school while I'm a sophomore. He is not friends with anyone in the senior grade for what I'm about to talk about. When I was a freshman, he was accused by his female classmate of SA at a party, which was a baseless accusation at best because there was no videos, witnesses, etc. It was her word against his. Given she is always surrounded by friends ( i guess popular? ), my friend got the short end of the stick and it completetly destroyed his social, academic, and extracurriular life to say the least. He lost his spot on a sports team, his parents nearly disowned him (they're all in family counselling now) and with that came a LONG period of depression he still finds himself in.

We ended up becoming friends when I was a freshmen and he was, obviously, a junior. A lot of people clowned him for basically being friends with a child and saying he'd go R Kelly on me just like he did with that girl. After that he sat me down and told me about the accusations and told me he never actually spoke to the girl in the first place. He did go to the party but spent most of his time in the corner drinking with his former friends, who abandoned him after the allegations and took the girl's side.
So basically last week (from his words, and text messages when he told me the day after) he snuck into a house party on his street (I don't live in that area, in my fact, my high school is fifteen minutes away from my house) and after an hour or so later, he went upstairs to go to the bathroom, where he saw the girl getting (you know the word) by a guy who was on a sports team with him when he peeked through the door (amicable terms, but not friends). She wasn't responsive, in his own words. Or probably on Rohypnol, in my opinion. Sickos.

My friend told me that he should've gone and stopped it from happening but he decided that she 'deserved it' for lying about her intial assault. I told him that even though she definitely lied, she still didn't deserve what happened to her and that he was sick for being an accomplice to an SA, which sort of makes him the problem anyway! He got mad and told me that I was 'just like the f**kers who accused him of a horrible crime' and said that atleast he didn't touch her, which makes him better in his eyes.

We argued for a bit over text and I finally blocked him after an hour or so and we haven't spoken since. In turn, AITA for yelling at him and saying he's an accomplice, and sort of being like his accusers?