Should I message him??

Long story short, I was talking to the guy from school, and everything was going good, we’d hung out just us 2 as friends, about 4 times, at the oval kicking the footy. We’d called a lot too.

Then one day he just stopped talking to me and messaging me, and idk what I’ve done if I’ve done anything.

Should I message asking him if I’ve done anything wrong, if so how should I word it.

PLEASE HELP ME