Because.. Why would you want it to dislike you, a cat won't go near you unless you feed it. So I can only assume the reason it goes near you is that it's been prior associated with you as a pet or partners pet. With that in mind a cat isn't going to give a shit about you so for a cat to dislike you it has to be uncomfortable / fearful in your presence right? So you're asking for people's advice on how to make a cat that's either a family pet or a partners pet to fear you so you don't have an allergic reaction.

So your question phrased correctly is, "How can I get to a cat that someone around me loves to fear me when I come into its home enough that it fucks off away from me, but do it in a subtle way so that the other person doesn't notice? "

Finally Allergies aren't caused by the hair, it's the saliva. So no one is allergic to the hair but the saliva on the hair after a cat cleans itself so in which case if the cat comes close to you, don't rub it and you'll be fine. Oh and airborne hairs you're likely about to add, carry tiny insignificant quanties of a saliva which antagonistic effects dissipate quickly also.

Also antihistamines.

But wait sorry no, I'm Illiterate and you're not an asshole. 😂😂