Is it normal to still like him after so long?

To make a long story short, my best guy friend tried to ask me out about.. four years ago. I was scared because I had never dated anyone before and avoided him. We finally decided to forget about it and continue being friends because he would like me and I wouldn't like him, and vice versa, all throughout our friendship and it was just too complicated.

Unfortunately, I still like him. We've been friends for SO long, we get along really well, we're like a perfect match. All of our mutual friends say that we make a great couple and I agree. But I have no idea how he feels at this point. It was so long ago that he liked me. I have no idea if he still does or if I'm completely insane for not being over him...?

Idk if I should talk to him about it or what. I just don't want to give up on something that could be a great relationship. I feel like there's hope... He still flirts and acts interested. He always asks me to hang out first and if I say no, he always wants to know why and if it's not a good enough reason he insists that I come over anyway. Lol.

Basically, we're still really good friends. I feel like that's a good step towards possibly dating in the future. But I might be delusional... What do you think? Is it silly for me to think there's still a chance of us dating? Is it possible could still like me? Should I talk to him about it or have a friend casually bring it up...? What to do what to do...

Thanks so much for your help~