Is it cheating if my f29 bf m31 not using his own images on a dating site?

Found out my f29 bf 31 has been using ai images of a man on 3 dating sites to get nudes from real women. I looked at his phone and I know I shouldn’t have.. but yea I’m pretty disgusted and feel betrayed considering he doesn’t even have sex with me anymore. He claims to love me and be obsessed with me and I believed him but not really anymore. I know it’s not like he’s seeking out people to date but this is definitely a breech of trust and he would not like it if I did that trying to get nudes from men. I also don’t care he if he watches porn but this just feels so fucking gross.