I went through a breakup recently that left me really depressed. I am a social person and I have had no desire to do anything social. I sleep and read. (and spend time with my kid of course). I've literally dragged myself to social outings in the past weekend and while I thought of every reason to cancel in my head, I ended up going to every single one of them
And you know what? I am glad I did. Talking others unrelated to my heartbreak really helped. I felt like my old self again, even if only for a few hours.
I encourage you to force yourself to do a little socialization. it really does help.
