What should I do or say?

So ...

My friend was going out with one of our friends and I liked him and still do.

He is shy but cute and nice and a great friend. We would do this thing where we would shout hi (name) and wave- it was so cute like even in middle lessons he would shout just to say hi to me. Throughout the time I knew him I felt like he liked me, even when dating my friend and I liked him.

But all of a sudden he just stopped saying hi to me and I was just like umm... what happened... (I didn’t say anything to him)

One week ...

Two weeks...

And he still hasn’t talked to me.

I definitely didn’t do anything wrong so 🤷🏼‍♀️

What should I do and how should I confront him?

Thanks ladies