I have an elderly female cat. I've had her over two years. Neutered. Never seen any other cats close by until a few weeks ago when a clearly young and probably male tabby started popping up. He looks well fed and seems very interested in my cat. I'm curious whether he 'fancies' my cat for want of a better word, or there's some territorial thing going on? My cat is gentle and nervous and doesn't assert herself so the other cat goes right up to her. I have the door propped open for my cat sometimes and the other cat has even come in, although he's very scared of me.
I wondered if anyone who understands cat behaviour has an idea what's going on? Is he just trying to make friends? I don't know if he's new to the area as I don't know where he lives. He doesn't look like a stray.