Haha, glad you're enjoying it so much!
1. You can definitely hate someone, there's a negative relationship state for it. Right now it's only an option for Julian after his hookup, but there may be a few other spots where it could come up. Then there are also side characters like Victoria or David you can be antagonistic with.
I'm not sure how far I'll go when it comes to a main character disliking you, though. There will be some awkward situations, like Asher catching you with Mafia & NC17, but I don't anticipate any situation where Connor would be so malicious as to be hated.
2. There's already a few spots where you can arrange hookups for people, actually. Romantically, I do have some ideas of characters who'll get together if Connor doesn't show much romantic and/or sexual interest in them. Some of those may happen via Connor being a matchmaker, we'll see!
3. I won't punish you for being horny all the time, haha. The only character who finds being overly sexual a turnoff is Asher. Everyone else is fine with it. Some characters, like Matt, actually build a relationship faster if you go have sexy times and then tell him about it!
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hello again. I got curious with the julian part and had to replay the game to actually agree to hook up with him this time and playing through the morning after makes me think about how this would look especially in the next update with matt. we probably might end up telling him about the julian thing and I don't think he will be too happy since connor was the one involved. will this cause rifts between him and julian? and in relation to getting characters together, is it possible to accidentally cause main characters to 'hate' (or dislike since hate is a big word) each other because of stuff like this.
There will be an opportunity to tell Matt about the Julian thing in the next story update. I haven't written that conversation yet, but Matt definitely won't be a fan of Julian after that. Which will be a little awkward considering they're in the same classes and will be acting opposite each other in productions!
There will be other points like that where characters will react differently towards each other based on what they know. I don't know how crazy I'll go with the reactivity in that regard, but for Matt specifically, it makes sense for him to feel protective of his best friend.