If a guy never talks to me but always checks me out, what does this all mean?

Anonymous
He is the popular guy.
I once said to his ex I kinda liked him but I never made a move. I avoided them all the time.
But they came to me to ask me how I was and he checked me out and his ex got annoyed.

Then he got single. I found out I never liked him like that.
So I never made a move from the beginning.
But when I try to hold the door open, what I do to every one, he looked weird at me.

If he is single he just stares at me, or checks me out.

But now he has a girlfriend again and he still checks me out. Keeps staring while I look at him, like what the hack is he doing? 😑

But even when he was still searching to date someone on a dating app he liked me on that. I liked him once and tried to ask him few things but he never answered, more like finding out what he wants from me when I made clear when I saw him all the time staring at me but he didn't answer.
Now he is in a relationship again and he sometimes used the dating app and he keep liking me on it. Now I ignore him because I don't do drama and dislike men who cheat so I avoid him.

I don't understand why he keeps doing that and also stares at me.
Updates
1 y
He had woman who would chase him, I was totally the opposite. I showed that too but never tried anything. I didn't like him like that. I also made sure, even when he was single, I don't look interested at all. So I don't get why he stares at me and checks me out. I just want to know what he means by behaving like that towards me.
Updates
1 y
I don't look good I think. Even though some guys I dated said I did look good but I think they were just being nice. I just have bigger size boobs, I think that's the only reason he looks at me and is interested in looking at me. I just don't get him.
If a guy never talks to me but always checks me out, what does this all mean?
2 Opinion