What can I do with this boy?

Well, I met the boy when I entered high school and we started to get along like friends but a "friend" was in love with him, so I decided to distance myself.

I went to another school the following year and distanced myself from all my classmates, but although occasionally I went to school and kept seeing the boy.

The truth is that I was no longer interested as much as before but he gave me "flirtatious" eyes, glances and so cute smiles every time he saw me, so I also began to reciprocate again, the problem is that for a whole year we spent like this and nobody said anything.

Then he left school, and I lost contact, until recently I located him and decided to send him a message confessing my feelings and what I have always felt for him, but he never answered me.

Now I don't know what to do since I know that maybe I told him too late and not in the best way, but I'm still interested. What am I supposed to do now ??