I've also been feeling consistently discontent. Quite lonely, lethargic, uninspired, and antisocial. I've also been pouring myself into my English journal, so my teacher now knows more about me than I imagined he would. However, I'm grateful, because he seems to care and offers me good advice. I only wish I could tell him the real reason behind my discontentment, however, I feel it is too personal for school.
PS, I'm sorry you've been feeling how you've been feeling. Was this situation entirely unexpected? Or are you reading into what happened wrongly? I advise you to find out the truth, and if the truth is not what you wanted to hear, forget them. They are not worth it. The initial hurt will make you cry, but soon, it won't matter enough to waste your energy. You will be the sun, and they will be Pluto-- a cold and distant memory of something that mattered. And of course, they will always be staring at you, longingly, but you'll have moved on, having forgotten what they once were.