Here's the thing about low libido: If you were on your own, you wouldn't necessarily notice that you had a low sex drive. But, when you are in a relationship and your spouse is craving closeness, the frustration starts to creep in. They are frustrated with you for the constant rejection, you are frustrated with them for not taking the hint and giving you some space, and you are frustrated with yourself for not being able to control sexual desire in your own body.