Is that what you think happened? The bartender was immediately drawn to him, for whatever reason. Then he went in and sat down and Nikki approached. Maybe it was just curiosity - he wasn't local (remember it's a small town), he's good looking and probably at least vaguely smells like money, so she sat down and he was nice, and talked to her about things other than her tits. Then Patricia came, maybe out of the same curiosity - increased because Nikki seemed to like him. Patricia also almost said at dinner that she'd been looking for a man since her husband died - but cut herself off because it sounded bad. Mika showed up to sit with Nikki and Patricia, because they're sort of her guardians in the club - but she hasn't shown a ton of interest so far. After he'd been there a few times the four of them went for a late dinner together.
Now, those three clearly like him or at least consider him good company (remember nothing has happened with any of them yet except for lap dances which he paid for and IIRC a kiss on the cheek or two.) That alone is bound to make the others curios - especially Sylvanie who, when she body checks Aurora in Chapter 2, says it's "a little friendly competition" (and acts as if the whole club is a competition between the women). There are a few others who we haven't really had much interaction with, but - especially after the fight, the incident helping the bouncer, and the new revelation that he's a doctor - he's definitely generating some interest and (I assume) no small amount of gossip.
Is that what happened or did "every female in sight immediately fall in love with him"?
Edit: The most unrealistic part to me, so far, is that all of these women are model-hot and working at a small town strip club but you have to make some allowances for the fact that it's a porn game.