How to respond to pfff, lol, XD?

"Quit laughing, bạn fucking bloody wank."

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

bạn could probably try to tell your friend to try and be a little thêm chatty hoặc contribute thêm 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 câu hỏi hoặc 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 hoặc not feeling well so they will try to end the conversation with something like that. When bạn ask your friend a câu hỏi try to do it in a way that a thêm legit answer is required hoặc just simply ask him to be thêm descriptive. To tell bạn what he/she thinks !!!!

sorry for not responding early, anyways, i like you

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