It doesn't mean anything.

Okay, so, maybe it means that you don't like that woman, maybe you're feeling guilty about not liking her. I wouldn't go any further into it than that. Most dream interpretation things, where you go and look up what spaghetti in a dream means, are useless.

To illustrate, here's what one site said spaghetti meant:

"To see or eat spaghetti in your dream, indicates that you are feeling entangled in some messy relationship. Perhaps you are not sure how to end a relationship or situation. You may find yourself in an uncomfortable position."

Phooey.