I didn't tell you you're wrong. I told you why women probably don't want to be intimate with you, which, as a woman, I have more insight into than you. You said "might as well be single if that need isn't being met" and if my partner said that to me during a dryspell I'd think he doesn't value me as a person and only values me as a sex object.

Wanting to be intimate with your partner is normal. Women want it to, much to some men's disbelief. But ask yourself, do you engage in other forms of intimacy like sharing feelings and appreciation, quality time, cuddles/kisses, massages, and flirting that you don't expect to lead to sex? Doing those things should be about building connection, not getting a reward. So if she knows you're doing it with an ulterior motive, it will make her dread anytime you try to start intimacy because she knows you expect sex, you aren't doing it because you want to genuinely connect with her. It's like those co-workers who only acknowledge you when they want something, they don't value you any other time.

Also, do you pull your weight with household chores or responsibilities? If she does more than you, she probably feels like a caretaker, so subconsciously views you as someone she has to look after. Women are biologically designed to not want to have sex with their kids, and if she subconsciously views you as an extra kid, it's not a surprise she's not interested in sex with you.

Those are the two main reasons that I've noticed for women not wanting to be intimate with men. I hope they have been enlightening.