Always give the benefit of doubt. Perhaps him acting aggressively and blocking you was a misunderstood attempt at humor. A lot of comments I make online are tongue in cheek but people take everything very seriously. Adding emojis doesn’t solve that problem and can even make it worse. It’s really impossible to know for certain. Online communication is totally different from the real world where feedback is instantaneous. Better to assume good intent, even when there’s a very high likelihood of being wrong. If nothing else it’s better for you to err towards rose colored glasses.