I have had some people with crushes on me that stressed me out because they got kind of demanding and entitled. They were nice, but they always wanted specific explanations why I didn't want to date them so they could change it. There was a forceful quality. I could see despising that. Im not sure that I despised anyone for that and would try to continue being positive towards them, but did want to just avoid them. That forcefulness and invasion made me not want them as part of my life. Not desiring an intimate connection should not have to be explained and proven in a court of law - or something that feels similar. It's okay even if it is not rational. People are too complex and there are enough of us that it's okay to be choosy for reasons that only make sense to the individual.