Weird..

So I was talking to this guy from an app where you make friends (patook) and we got on really well. He added me on Snapchat, I'm not looking for anything and he was just out of a 4 1/2 year relationship the same day we started talking, he lives several hours away. We talked quite a bit then all of a sudden tonight he took a screenshot of our chat and blocked me?? Like it's so random I don't really get why, surely if he didn't wanna talk he'd just say? But why take a screenshot? He seemed quite nice and like I said we got along really well but to just block me. I don't really give a shit if he didn't wanna talk anymore & whatever but it just feels a little odd🤔 unless he never split with his girlfriend and he tried to cover his tracks. But I'm just out of a relationship and last thing on my mind is guys only for friendship. He even said we got on well. But there's nothing incriminating in our chat so it's just confusing