How we can all be so different and yet so much alike

Sometimes I can't get enough touch, and at other times it seems suffocating. In my earlier years, I needed the touch to feel loved/needed, now mentally I still seem to want that . . . but my feelings are more of the stand-offish and shutdown variety and I'm not feeling a whole lot of those better feelings these days. Irritable, frustrated, angry . . . . I tend to push away/avoid. That really bothers me in a relationship . . . . I find it very hard these days to get close at all.