Does he like me?

I like this boy who is in the year below me, unfortunately this means that I don’t really see him during the day. When we do see each other we are always with our friends. We don’t talk at all but when we are in the same area as each other we always look at one another but turn away as soon as the other person catches us. I have texted him once so I know he knows who I am but he just stopped replying to me all of a sudden. Does he like me or am I just imagining it all as I want him to have the same feelings for me? please help!!