Snowshoes, like Tonkinese (from what I've read and experienced) are VERY possessive and usually "pick" their person.
When our Snowshoe gal was flown in from Oregon my husband picked her up at the airport and brought her home. She had decided on the car ride that he belonged to her, and when she came waltzing out of that cat collar with her pink collar and her big blue eyes she promptly hissed at me! LOL Would not have a THING to do with me.
I was heartbroken as I was the one that had picked her out and sent for her!
There was NO changing her mind!
Then she became really ill with pyometra, they didn't even want to spay her they didn't think she'd make it through surgery. I nursed her day and night and slept by her crate that I had taken the top off of so I could touch her. I put her on a heating pad and gave her antibiotics and babyfood through a syringe.
By golly she made it and she now is MY kitty ROFL She worships and adores me and the feelings are returned. So, just kiss up to her A LOT! LOL Good luck.