Should I move on?

Ok so the guy I’m talking to currently is someone I’ve liked since we were in high school (both 23 and 24 currently) and I just don’t understand if he’s not into me or what. He always wants me around, has introduced me to his child and his friends, and is always super sweet and loving when we hang out. But if I message him something sweet or anything, he just kinda blows me off. Never really reciprocates those feelings, at least not in words. I have liked him since I was 15 and he has liked me as well, but I just don’t know if I’m wasting my time or not. Or maybe I’m overreacting or something. I’ve tried talking with him about everything and he doesn’t really give me an answer. Do y’all think it’s something I should continue to invest my time in? I literally have no female friends to speak to about this and my mom is awful with stuff like this. He’s a great guy but maybe he’s just not ready for the commitment I am?

To clarify- it’s not been ten years with him. We lost touch after high school and he was with someone else for 6 years during the time. We recently reconnected and have been speaking and seeing each other for a few months.

UPDATE: men ain’t shit and he ghosted me for three days and I confronted him and he did move on. Thanks y’all, you were right.