Romance is so confusing

Ok hi so there’s this guy I really like but I GENUINELY CANT TELL IF HE LIKES ME OR NOT OR IF IM JS BEING DELUSIONAL OR IF I SHOULD EVEN PURSUE HIMMMM💔 I’ve never liked anyone before and this is the first time I’ve had a crush on someone but I’m not sure what to do. At first he just seemed like a nice guy but throughout the school year I keep getting more and more attracted to him. He’s so sweet and nice to everyone he talks to, even to people who are really quiet and shy, and he’s got this cutest smile and biggest eyes I’ve ever seen. He always seems so happy and genuine, and whenever we talk, he talks so comfortably with me. He makes me laugh and I just want to get to know more of him every time we have a conversation. He did ask out this one girl during Valentine’s Day and he kinda got rejected? I mean that as in the girl he asked out was his friend but wanted to get to know him more before she thought about becoming his girlfriend since she thought he was pretty cute too. I’m not sure if things worked out between them though since they don’t seem close like that, but appear to be good friends and not much more, so I don’t believe he is in a relationship, but in case he is, I want to lose all feelings for him. Sometimes though, I feel like he gives me mixed signals? I may not be too sure, but he sometimes looks at me as I catch him doing so, but I always chalked it up to it being a coincidence, so I never put much thought into it. Also, he always looks at me with a smile on his face. The only time I ever see it falter is when he’s focused on the work he is given, or simply lost in thought. I remember this one time I was getting some stuff from my locker since it was the end of the day and he saw me and we talked for a little—I can’t remember what for— but afterwards someone called for him or something so he said “wait there, I’ll be right back” to me, and once he finally came back, he gave me a proper goodbye. I don’t consider us that close, maybe just something between friends and acquaintances, but he always likes my stories and posts, sometimes being the first to do so, and he even reposted one of them. I’ve NEVER seen him reposted another girl before. Of course I could just be reading too much into it, but these days, people can be really subtle, and sometimes small actions can be confused for romantic pursuits, so I’m really not sure what to think of this. I don’t really have anyone to confide in about a situation like this, but some public opinion might really help. I can’t necessarily ask my friends since one of them is friends with not only him but also the girl he asked out, and considering my friends are always around when I talk with him, I feel like they’re becoming suspicious about what I really think about him. I might end up deleting this later anyway, but some thoughts might help me out.