<human>: Condense the text into a few key points

My boyfriend and I have decided to move in together, but we are running into the issue of our pets. I have a very playful 75 lb dog, and he has a cat that is very aggressive towards other animals. What are some things that we can do to get them to get along? My boyfriend says that she's been aggressive towards other animals since she was a kitten. He brought her home while already having another cat that belonged to his roommate. They tried everything as far as introducing scents, keeping them on opposite sides of a closed door, etc. His kitten never warmed up to the other cat and would go out of her way to attack it. His roommate and cat moved out after a few months, so my boyfriend's kitty hasn't had any other animal interactions. My dog has never been around other cats before, and I'm sure he will be obsessed with wanting to get near her. I don't what my bf's kitty to feel anger/aggression/betrayal, but I also want to make sure my pup stays safe and doesn't get hurt by razor sharp kitty claws. Any suggestion?
<bot>: My bf and I are moving in together with my dog and his cat. Kitty is very aggressive to other animals. We've tried introducing scents, but it's failed. Other suggestions?