Kim is looking for this much older book! Ghost romance which I love!!!!
I read a book in the 70’s.
A woman was in her kitchen, then a cat would appear in her garden. She went out to see the cat and fuss it, and then a man in centuries old clothing appeared. She thought it was strange, he only appeared when the cat was in the garden.
Over time she did fall in love with this ghost in the garden.
Forgot to mention, when he appeared the garden reverted to it’s former glory as it was in his time.