Yes, a spouse has an obligation to provide marital relations. But each should be sensitive to the other’s emotional and physical condition. Sometimes a spouse may engage in sex when s/he doesn’t really feel like it to be a good spouse, or a spouse who really wants sex may restrain him or herself knowing the other is not in the mood or in a condition to provide the “sexual happiness”. Husbands can be getting sick, overworked, or thinking about serious problems and not be in the mood too.
Humans are not animals, and marriage is much more than sex.
Thank you. We may be edging closer to being on the same page.
A spouse who is willing to engage in sex when she doesn't feel like it, or better yet work at resolving WHY she doesn't feel like it, is displaying love to her spouse. Similarly, a spouse who gets up every morning to work at a stressful, difficult job because he wants to be a good provider for his family is likewise displaying love.
To me, love is displayed by the willingness to make an effort to advance the happiness and well-being of those you love. The absence of any visible willingness to make an effort to keep the other happy is likewise a display of the absence of love.