Libra guy ignoring me or shy?

I have this Libra guy I like in school. I'm shy to go up to him whenever he is with friends but im ok talking to him alone.

i remember after school, our eyes first met, i smiled first and he smiled back to me. that was a happy moment for me.

Whenever I tried to talk to him, he just smiled and doesnt say anything. or doesnt give the effort to keep the conversation going. He has friends and classmates get along well. Its hard for me to progress. since im a kuudere (shy, calm and seem emotionless but will show my sweet side later) and i assume hes a dandere (dandere means a person is shy and seems antisocial but they often want to be sociable but are too scared or too embarrassed to talk until the right person comes along.)

My friends say that this libra might have no interest in me. but i dunno, he gave me hints like he ever tried to look at me and i caught him staring at me or during figure drawing class i was the model and he suddenly change seats facing me, i got flustered by that time.

recently, I keep on having dreams about him and me being together, everytime i sleep even in naps. *one of my friends think that he misses me but i dun think so*

its hard for me to let go of him since I like him for 3 years.

i assume that hes not interested in having a relationship atm due to studies or like someone else.

What do you guys think?

3 years. It maybe time to move on.