You really can't call it a relationship, ypu two might have mutual feelings towards each other, yes. You two had kissed and spend intumacy together, he would visit you, put snacks in your locker, would always look out for you when he walk to the hallway of the school, two texted each other until you both fell asleep and woke up then the first thing you would do is to greet each other. Almost like what most couples do, that most students in the school thought that you two are dating.

But you aren't, you two have unspoken feelings. Most likely your actions speaks louder than words. No commitments and official statements, just...hanging out, but not together. And the fact that it's difficult to get jealous because you two is not a couple in the first place. If Suguru saw you talking to guys, he would instantly get jealous but can't confront you about it since he's not your boyfriend anyway. Same goes to you. The most complicated situationship you two have been in.

Suguru would fool around with girls, just like a typical frat boy. But the thought of having a girl beside him inside a hotel room that isn't you is odd to him. He didn't know it either why he got attached to you. He would always choose you that's for sure.