I guess since he hasn't expressed his intentions explicitly, and maybe this is a reason not to be honest with him on how you perceive him, probably you can be very formal with him and limit the contact to what the job requires. He hired you because you are qualified, I assume, and you help his company, so, you owe him nothing. If he was nice to help you, that is great, you can return the favor professional-wise. I wouldn't quit, unless you can find another job you like first. Are you happy in your marriage? Do you have any doubts in your marriage?