People frequently feel they want to end a relationship but are confused. This may not be a relationship ending threat but it is a warning sign. See if you can both gain some understanding of the others position and see if you can make some adjustments that might improve things. Don't hesitate to consult a therapist. Be sure to examine the sources of your hostility towards your wife.
People often look for hidden signals when up-front, direct communication is the best approach.
Talk directly, ask questions, don't pressure, listen carefully and face the issue point blank. I think a social life and relationships is an important part of happiness for most people, and I don't think I would expect to be able to help you realize a goal of loving life without friends and special relationships. However, if you think you are too needy and unable to feel stable, relaxed or happy during brief times alone, then it might be you need to explore some psychological issues. Perhaps depression or lack of self-esteem are getting in your way. This is a very important question that is becoming quite a common situation.