Hello everyone. I have a cat that’s around 2 years old. He’s an only cat in my apartment and I live alone with him. I work from home so we see each other plenty and I play with him constantly, along with him having interactive toys to keep him busy.

My landlord on the first floor has a cat who is 4 and when I first got Leo (my cat) they got along really well and would play fight like normal cats.

The last few times they’ve played together, they end up in screaming fight matches that I have to break up and separate them. Leo is very playful and I don’t think he understands how aggressive he can get and I’m trying to search for advice on how to curb this new behavior so he can interact with other cats appropriately. Any help is appreciated. Thanks so much.