Should I tell this guy I like him?

I’m in love with my good friend’s brother. Everything about him makes me smile, and all his quirks I find rather adorable. He can play gorgeous piano, which is one thing I love most, and when he plays my favorite song for me my heart beats really fast. I think about him all the time, too. The only thing is he’s a year older than me, I don’t know any of his friends, nor if he likes someone else, and I if I actually do end up being with him it’ll be extremely awkward for my friend (who is a boy, btw).

What should I do?

We have a good friend-relationship going; we talk on the phone quite often and for hours at a time, we share a lot of common interests (nerdy things, mind you), I go to their house a lot and we sit inside and play video games or go play in the park, he offers to teach me piano a lot (which I do sometimes), we’ve gone to movies and the mall before (with a group of people, but we usually ended up talking the entire time anyways), and, if I see it correctly, is rather flirtish with me. Which I could read wrong—I don’t know any of his friends/have not seen him interact with them so I don’t know if he treats me special or not. (I don’t know any of his friends because I was in middle school before summer this year while he was a first year in high school. We’ll be going to the dame high school next year though.) Also, I don’t know how to explain it, but I can tell that he cares and thinks about my responses, if that makes sense. Like, if my phone dies during a conversation, the next day he’ll text me “what happened yesterday? :( I was just getting to the good part of my story :P” or something like that.

I feel like I should tell him how I feel. But I’m a complete romantic. I can totally imagine me admitting my valiant love for him while watching the sunset and having my first kiss right then and there. Ha. But still, I have levelheadedness, so I know that it won’t be like that. It’ll probably be extremely awkward if it even happens at all.

I remember at my 8th grade graduation, he told me he’d be going (because his brother is my grade), and I was so anxious to see him there. The entire time I was basically looking around the audotorium to see him, but I couldn’t find him. I couldn’t find him afterwards either, and I was so bummed. But afterwards and called me to apologize that he couldn’t tap my shoulder in time before I left, which made me feel so much better. When he does things like that, I can’t help but just smile so hard my cheeks hurt and want to say “I love you” over the phone.

Do you think I should tell him? I just feel like it’s been a very long time, and I’m still really in love with him, so it’s just a crush like I had previously thought. And also the fact that he might get together with someone else while I’m doting makes me even more edgy. (it’s happened to me before, too.)

Thanks for taking your time to read my very long and complicated post. I hope that my grammar wasn’t too off, and that you can give me some good replies! :)