If sex was withheld from me it would just get me pissed off, if it went on for any length of time, like months and years, I would look elsewhere, she is just using sex as a weapon.

She would only be cutting off her nose and spite'ing' her face if she really wanted sex. If she didn't care either way about having sex she has the upper hand, that's not a healthy relationship.

But that may not be where you are coming from, I think you might mean as a sort of erotic denial of sex. Making ultimately both of really glad of the sex when you eventually get it.

Reminds me of the old joke, where the masochist says to the sadist, 'go on, hurt me' and the sadist says, 'no'.