Gf wants a cat.. so do I

Problem is I'm allergic

It's a very light allergy it's basically just nasal connection and irritated skin to a minimum but it's still there

I am more than fine being in the same area with really any cat, and I absolutely have ran into cats I'm just not allergic too at all, currently my gf has a friend with a cat and I was holding and cuddling that little cuddle bug for atleast 20 minutes and i walked out of there how I walked in

It's to an extent of where it's need a cat not even want one anymore and I want to make that happen for her, yet I just don't know the best way to approach this with me being allergic and all

I grew up with Dogs and reptiles yet I've always wanted a cat, I'm willing to do whatever to make this happen truthfully