What does it mean when a guy becomes distant from you?

We used to hangout a lot and talk a lot and send each other funny videos everyday but now everything changed he became more distant even if he's online he ignores me, there are days and I don't hear anything from him, it's like he changed and even when i try tall to him he makes me feel like I'm annoying him. I'm very confused. I can understand if he goes through something but he seem fine and normal, even online he's active as always. I feel like I just exist there but he can't see me anymore, should I just cut ties or should I wait, and before y'all say anything I tried talking to him but he seemed like he didn't want to.
What does it mean when a guy becomes distant from you?
Post Opinion