I broke up with my girlfriend of 6 years like 8 months ago. Since then I haven't pursued anything romantically as I have been trying to instead pursue my career, passions and interests. However my life seems to be tinted in gray without someone to share it with. What is wrong with me?

Everyone here seems to be totally OK not pursuing women or relationships. Why do I need to be with a woman in order to feel complete in my life? More importantly, how do I change my mindset?

When I first become single I was optimistic and things seemed alright. But every day it becomes more difficult to get out of bed, and more difficult to get to sleep. I constantly reminisce of the days I was in a relationship and my life seemed to have color. Everything seems so pointless now.