I want to know the reason!

Hello everyone.

last days I've been thinking a lot about something happened.

I met a guy online who can play violin, I asked him about thing regarding music and violin.

We started to talk about many things, somehow we became friends as we share many intersts together.

after a week, we decided to meet, because he wanted to teach me things in playing violin. We met and everything was going fine.

After this day, he stopped talking to me.

I talked to him but his answers were very short and cold.

I decided to ask him if there is anything wrong, I tried to remember if I did something wrong but literally nothing happened that day we just talked about music and violin!

He just said he is not feeling well these days and that's it. I told him I'm here if he needs any help.

until now he didn't talk to me again

I really want to understand what's wrong.

I can't take this out of my mind and it bothers me a lot.