hi there ive had my cat raven now for 4 years and recently decided to get another cat (raven is a girl and has been spayed) ive brought a 12 week old tom cat in.......the point beeing she hates him,ive tried giving her more cuddles and fussing over her but no ,she even hisses at us now and will hardly let us pick her up .its been 6 weeks now and nothing has changed but seems to be getting worse ,she comes and goes when she wants ............even confrontation together and shes hissing and raising her paws to claw him. ANY ADVICE WILL BEGOOD