Hi!
Yes, there are explicit scenes, but only on the "true" ending of 3 characters, and they are a bit hard to get, aha 😅
[SPOILERS]
Hmm, it's a bit hard to say, without much informations 🤔 Have you tried to get as much violet hearts as possible? Always go to him when it's possible (even to annoy him) And once it's done, go get him directly on Valentine's Day! I think, that way, you should get ending 2 😊