Gray and Natsu.
The two meet in class after Gray has a mysterious dream. From there Natsu begins hanging out around Gray a lot. Will opposites attract? Or will Gray be just as heartbroken as he was when Ur and Lyon left.
Gray and Natsu have been broken up for a couple of months now, and let's just say, their relationship ended on "bad terms". But when Natsu starts to go out with someone else, Gray starts to get jealous.