Anecdata ahoy
This wank just reminds me of the period in high school where a friend of mine dated a dude who would only eat plain chicken strips and fries when eating out -- every date was plain chicken strips and fries, and obviously he'd refuse to go anywhere he couldn't get his trademark meal. My friend was an adventurous eater, and while the 800-pound chicken strip in the corner didn't actually end the relationship, I think it was a nail in the coffin. (How's that for a mixed metaphor?)

I'm sympathetic to the general point of "adults have the right to eat what they want without their SO dictating it" -- I really can't stand most cooked vegetables, much to my boyfriend's mystification -- but when it gets too restrictive, yeah, it becomes a high-maintenance behavior. Nobody should have to eat salad on their SO's say-so, but nobody should drag their SO to the Chicken Strip Shack four nights a week because they refuse to try anything novel, either.