I lack enough real world experience to stereotype this situation but I suspect the "once a whore, always a whore" thing applies. Women in general tend to lose respect for men that aren't protective of the woman's purity. What I'm saying is if the BF knows of the OnlyFans and is "ok" with it, then she thinks her BF is a pathetic and weak man because a real man would never let her have an OnlyFans. Her probability of cheating on him and of being more combative toward him in disputes increases immensely. Meaning, the end result of this is likely being to end in dramatic failure.

I think a lot of guys mistakenly think that because the OnlyFans isn't "in-person" and she's making tons of money that it's "worth it" but deep down, the woman has lost respect for you for allowing it. I don't imagine any relationship involving onlyfans whores would ever be successful but tbh, not any relationships are successful so at the end of the day, as long as the dude doesn't expect much from the woman, then who cares; however, judging from the photo this guy looks cucked as fuck and probably believes in fairy tales like love. Woman is gonna whore around and he's gonna get hurt because he's a dumbass.