I'd say we do learn something about Lily; she likes nice guys. She'll give the MC a free blowjob if he didn't finger her ass and if you don't hev DIK affinity. Also, he gets her a bottle of Tequila because she mentioned it on Rooster and all the responses from the Pink Rose about how he's a nice guy are amusing.
If you can't see it, then they're obviously not your type, but they are the MC's type because his type seems to be just about anybody. We've seen lots of moments in the game where he spends time with them and their bond develops, also they're hot and he's a young, virile guy, so it's not hard to see why he'd go for a lot of the girls in this game when they all look this hot.
There's plenty here to engender positive feelings, but if that didn't happen for you, well then that's you, but it happened for the MC and it happened for players too. The main issue is here, as it is with so much of the game, is that it forced a lot of drama on the MC with lots of characters, even if the player has chosen to largely avoid certain characters. It tends to skirt over establishing logical reasons why the MC continues to be as heavily involved with certain characters, and had it done a better job at that, then we would't be having these discussions.
That's hardly the "worst" thing, let alone something that can be considered all that egregious. It's a typical defense mechanism used by women to rebuff a guy when they're not interested in them and it happens all the time. Maya simply realises fairly quickly that she can trust him and that she doesn't have to be dishonest with him in this regard. It does make the MC think he's got a chance, but she also doesn't object to the idea when he says it's "too late" for him to not be interested in her so she seems pretty open to the idea, even at this early stage.