My wife and I have very different sexual desires and libido. It bothers me not because I am thinking of cheating (I'm not) but when I get pent up after a week or so of no sex, I start wanting a threesome or to even swing. I don't have this desire when we have sex a couple times a week. Is this just sexual frustration, or is my subconscious trying to tell me something? We have a stable relationship otherwise.

We have talked openly, and she just says she has no desire to have frequent sex. And masturbating doesn't help.

I guess I'm just frustrated, and needed somewhere to unload since I can't unload in her. Has anyone else navigated a similar situation successfully?