Hey, Breezy Day. I think you should give your guy the opportunity to know more of you, the bad as well as the good, and make up his own mind as to whether he "should face that about you" or whether he should move on and find someone else. I think your fear of being left is not helping you or him. Bailing without giving him the opportunity to speak for himself about how he feels hurts you even more than it does him because it gets you in the habit of not thinking well of yourself or trusting others to love and help you (what "partnering" means?). And it is disrespectful of the other person and their ability to make decisions about their own life.

I would talk to him and share some of your experiences with being depressed and not work so hard to be upbeat when you are not feeling well. It is one thing not to complain when we don't feel well but another entirely to "hide" that we do not feel well and pretend all is good?