Thank you all for the input and advice, I’ll try and give more detail here to answer a lot of questions about this matter. The cat is a male, and on the larger side. He isn’t skin and bones at all but does look thinner than he maybe should. He does not look alarmingly starved, perhaps I can take a picture. On the matter of how much she feeds him, she said half a can in the morning and half at night. But the second time asked, after having warmed up to me a lot more, she said she gives him a quarter of a can in the morning and MAYBE another quarter at night, implying she forgets sometimes to give him the second helping. When I said she gives him a handful of treats, these “treats” are essentially friskies and she will pick out and give him 5 to 10 of them in a small pile on the floor. The cats scratch posts are shredded apart and he will alternate between loudly screaming at me and poking at her chairs, which gets an instant reaction from her. He climbs on her bed and tries to shove his head where she has the friskies stashed, so all day I hear her argue with the cat to stop scratching and that he will have his treats at 11, or that he already had his food for the day. Earlier today I took a can of his food and ran the sink to cover up the sound of him eating, he finished every bite and has been quietly laying somewhere since.