i have information i really don’t want

so long story short, this guy i’m interested in broke up with his girlfriend. i told him i was interested in him but he said the breakup was messy. nbd, i tell him if his mind changes to let me know and if he doesn’t wanna do anything with me to not worry about it.

it’s been a couple weeks since that conversation, and last night i accidentally found his pornhub account where he posted videos of him and his ex. i can tell it’s him cause he has some pretty distinct tattoos. do i tell him i know? do i let her know incase he posted them without telling her? do i just bury this information deep in my brain and never tell anyone???

edit: i absolutely am cutting him off. like i’m not taking that chance.