Are you good enough?

Anybody ever asked themselves "Am I good enough?" I mean good enough to be in a certain group or even talk to someone. See, I'm asking because my sig. other was having doubts about himself and whether he's good enough for me because he thinks I am just so not on his intellectual level. I love my babe, and it's all good, but I'm trying to tell him that it doesn't matter because I will support him no matter what. I just want to know if any of u ever felt this way about something and why...