8yr old female cat has been with me since she was a kitten. Never really successfully house trained her as we moved house during this time.
So I'm looking after a 24 month old little girl and the cat's behaviour has become worse. She hisses and lunges at the baby for no reason. She pees and poos anywhere She bullies my other older cat She's making me nervous even.
Have asked for help in rehoming her but they don't think they can help.
I'm off to see the vet now. Truth be told, if she was a dog, she'd be put down :-(
I really think you should get her in to see the vet. As others have said, behavioural changes in cats could be due to a medical problem and that should be ruled out before deciding that it's stress/jealousy. If she isn't sick then it sounds like going to live with your friend would be the best thing for her if she's not happy with you.