Why am I so attached to this guy??

o a k l i e.

So I'm 14 and me and this kid like each other he's 15 and going into high school and I'm going to into ninth grade it's really not a relationship it's just one of those teenager crush things. We talk like every other day, but when he doesn't text me back or Snapchat me back I get worried like he doesn't like me or he's not interested, but he usually texts me back. But why am I so attached to him?? Cuz sometimes we text for like a couple of weeks then he doesn't text me back for like a month or two, I don't text him back cuz I feel like he's not interested anymore. He's really sweet though he always flirts and stuff and that's one of the reasons I like him & he's HOT!! lol & im really sad he's going into high school cuz I feel like he's gonna forget about me cuz he's in high school. We've been talking since January & never met in person and how we were introduced is he's my best friends cousin & so that's how it all happened. But he seems like he's really into me tbh. But I have one question, why am I so attached to him?? I really like him & I think he really likes me but idk. I'm so sorry if this all sounds confusing and out of place. Plzz no hurtful comments I just had a question. I rlly need help with this.