I don't even know where to begin. I've been feeling depressed since I can remember, and I just recently started dating a girl with whom in April I had a one night stand with. She is a friend of my friends wife. Now she won't return my calls or texts. The last time we spoke everything seemed fine, which was last Tuesday. We haven't even spoke of the one night stand, and we haven't had sex since we've been dating. What is odd is that her avoiding me these last 7 days has thrown me into a downward spiral of sorts, and I just feel really...heart broken. I do like this girl, but I hardly know her. I don't know why I even want a relationship with a girl that I know has cheated on her last bf...I was the guy she cheated with. I don't even really have strong feeling toward her, but I feel like I did when me and my last ex split. There is no reason for this feeling, but I can't stop feeling this way, and I can't even work because I am so sad and depressed. All of my friends are married now, and I hardly leave my house. I have slowly become an introvert and I can't stand anything anymore. I stopped smoking weed yesterday because it just made me angry and I couldn't stop thinking about why she won't call or text me. I can't even finish a cig now because I hate the taste and smell all of a sudden. There is nothing in my life that makes me happy anymore. I can't even stand turning on my Xbox. It just annoys me. Seriously, wtf is wrong with me? This is not normal. I can't stand this feeling, and even worse, I have no idea what is causing this or how to begin fixing it. I'm 28 and on a emotional level I feel like I'm fucking 10 sometimes.