Do you like the person you are in this relationship? This isn't about liking or loving him. This is about how you feel as a person when you're with him. Do you feel like you're growing in all the ways you wanted to when you were a new adult? That you're becoming the person you want to be in life?

You can't live your life in service to another person's insecurities. And it sounds like neither of you are happy in this relationship.