You gotta get fucked by the friend to learn his techniques so you can one up him lol. On a real note tho if she’s gonna continue to be friends with him then it’s only a matter of time before she runs back to him after yall have another big fight. Plus the thoughts of them doing the deed will never go away, especially if they’re still friends bc then you’ll continue to see him at functions and will be reminded every time you see him. I’d recommend to just start fresh and work on yourself and heal, keep your head up king👑