lol so he lies to her about why so many guys were there AND attempts to gaslight her with the implication that maybe they're both misremembering and there weren't a bunch of guys there. he also says she told him she was sober and hadn't gone anywhere else but she says she's positive she told him she was drinking with the sorority. it is possible there was some kind of misunderstanding, but it's hard to mistake a girl who's had ten drinks for sober. wouldn't be surprised if he talked to a lawyer in the intervening three days and the lawyer said to pretend he didn't know she was wasted when she got there. this doesn't look good for him.