My brother and I really enjoy playing each other in multiplayer. We chat during the game, talk trash, etc.. So when we finish a game, the chat instantly shuts down, and we then need to switch to texting to see if we want to go again, or stop for the night.
It sure would be nice if the chat window would remain open after a muliplayer match to allow the players to discuss if they want to keep going or call it quits. Maybe keep it open for a couple minutes after a match before it shuts down.
Just a thought.