Ah, give it time....
My hubby wasnt a cat lover AT ALL when we first met - he was a confirmed dog guy through and through. Four years into our marriage and he inadvertently ended up rescuing a little kitten who was way too young to be out, and who had been caught up in a strong gust of wind and bowled along in front of the bus he was driving. He stopped, scooped her up, popped her in his holdall, and took her to the police.
Who refused to have anything to do with it, and recommended we took her to the local shelter.
Of course, he brought her home, we advertised her as having been found. No-one claimed her, and the rest, as they say, was history. That was 30 years ago, and since then, he's as barmy about cats as we all are.