ailurophile
A person with ailurophilia; a cat-lover.
He played the piano well, was an enthusiastic ailurophile, and persistently played solitaire while talking and writing.
Where it comes from
From ailuro- (“cat”) + -phile (“lover”), from Ancient Greek αἴλουρος (aílouros, “cat”) + φίλος (phílos, “dear, beloved”).
Adapted from the Wiktionary entry ailurophile (CC BY-SA 4.0).