How to respond to pfff, lol, XD?

"Quit laughing, 당신 fucking bloody wank."

I hate it when people do that. It's hard to respond to stuff like that.

당신 could probably try to tell your friend to try and be a little 더 많이 chatty 또는 contribute 더 많이 to the conversation.

Repeat them.

I have seen it happening a lot. It depends on the subject you're talking about. There are times when people might not know how to respond exactly to a certain kind of 질문 또는 comment. It's an awkward situation so they reply as simple as they can. Of course there is always the possibility that they might not feel like talking, being busy 또는 not feeling well so they will try to end the conversation with something like that. When 당신 ask your friend a 질문 try to do it in a way that a 더 많이 legit answer is required 또는 just simply ask him to be 더 많이 descriptive. To tell 당신 what he/she thinks !!!!

sorry for not responding early, anyways, i like you

I just assume that the conversation has reached its natural conclusion.