Please help me understand the situation
Hi everyone! Sorry if this will be a bit long. I'm an infj (17f), who's had a crush on an intp (17m) for a pretty long time. We started talking about a month ago, after I passed him a note through a friend - that's quite childish, I know, but I'm terribly shy and would never find the courage to approach someone in person. But he responded positively and after that everything was going really nice. We used to talk during breaks at school and sit with each other on the class we have together. And the relationship didn't feel one-sided at all, because often he was the one to initiate the conversations and seemed quite engaged in them, asked me questions and so on. I took it as a sign that maybe he could be a bit interested too, because he's also pretty shy and I don't see him talking to people very often. One of my friends also told me that he probably likes me, because it kind of shows from the way he behaves around me. On the last week of school I asked him if he'd like to meet on the first day of summer break and he said yes. But unfortunately I got sick later on and, I was really hoping I will get better until that day, but I didn't. I woke up feeling terrible and decided I should probably cancel the meeting, so I texted him, apologized and proposed to meet on Friday next week. I know I probably send the message way too late. But he responded right away and said we could meet then, just that he's not sure if he won't have other plans next week. So I asked him to confirm later, but after that I haven't heard from him at all. I even sent another message a few days later, to confirm if we're meeting or not, and I tried to make it as polite and casual as possible, but I didn't get a response either. I really really don't understand what is happening. I'm scared I did something wrong... Is it possible that someone's behavior could change so dramatically over just a week? Or maybe he was never interested at all... I know there might be quite a few reasons behind his disappearance, but the uncertainty makes me kind of stressed and I really don't know what to do. If he really just doesn't want to talk anymore I'd rather he tell me straight up about it. Mostly because we still have one more year of high school ahead and I won't know what to do when we see again there - should I act as if we don't know each other? I don't feel mad at him at all, if I knew the reason why this is happening I'd probably understand. It's just that I know nothing and it scares me a little.