Am I the Asshole?!

Am I the asshole for secretly matching with my friend’s dad on a dating app, hooking up with him twice, and then casually dropping it in conversation with her just to see her reaction?I mean, she always said she hated him, so it’s not like I ruined some perfect relationship plus, he’s loaded and the sex was amazing. She called me a "disloyal sociopath," but honestly, if she didn’t want this to happen, maybe she should’ve warned me he was hot. AITA for thinking she’s overreacting?