Being able to bounce back and forth with dialogue is a hell of a lot of fun. But since it sounds like you're "new" to having this happen, I would look for these things when reviewing/editing what you've written:
A) Can the reader distinguish who is talking? I occasionally see people who put a line of dialogue down, and IN THE SAME PARAGRAPH put the nonverbal (or even verbal!) response of the other character. That makes the reader pause to figure out who is doing what, and breaks flow. Or, when you have three or more characters, you can end up failing to give enough clues as to who is talking, particularly if two characters talk similarly. I will have a lot of times when I edit my own stuff where I tweak the words *around* dialogue, just to clear up who is speaking or doing what. After I've been away from the work for a while I can spot places where I thought I was clear who was talking when I wrote it, but throw *myself* for a loop on the re-read.
B) Are you keeping the dialogue interesting, without having thesaurus diarrhea?
C) Is the dialogue DOING something? If you really love your characters, it's easy to fall into a "sitcom" trap where your favorites are just quipping at one another and YOU think it's freaking hilarious, but your story isn't really going anywhere with it. Unless you're writing a sitcom, this sort of thing can be an issue if too much of it goes on. I typically flow with ensemble quipping, because it gets me writing and it can be really fun, then go back and strip out bits I don't need.