Well let's start with the fact that Josy is the only girl who genuinely loves the MC. She is interested in him simply because she likes the guy and that's all. Yeah, yeah, they are all interested, but at the same time they all have their utter motives.
Maya - she needs his help with her shitty loan situation, needs someone who appreciates her for who she is, with all her insecurities and all. Sage - needs a shoulder to cry on, a dick to ride, and an ear to vent. Bella - I don’t even want to get into this bughouse of her head. The drunk college idiot who made her cum since the three years of nofap and overcome her mental block after James. Jill - needs someone who appreciates her virginal uniqueness and rich inner world, and since she has no one else to choose between Tybalt and Rusty, here comes the MC. Quinn - you know better. Love? Meh, broccoli. But money, fists and dick will come in handy. Josy only likes this guy because she likes him and she doesn't expect him to solve her problems.