My cat addy seems to have lost her fucking mind. She keeps trying to beat the SHIT out of my other cat -- they've lived in the same house for 2.5 years, and out of nowhere last week, she started antagonizing him in a severely brutal way.... Last night, we heard a serious rumble, and discovered both the cats on opposite ends underneath the bed... Addy's growling, Dexter's growling, and as soon as I pick Dexter up (thinking that he's the one being the jerk) it's clear that he's terrified. We separated them, leaving Dexter in my room, and Addy with Spence downstairs. While petting Dexter to calm him down, I removed TWO of addy's splintered claws from him -- one from his FACE and the other from his back. Spence watched a movie, and I went to bed. Dexter curled up in a terrified little ball behind my head on the pillow. At 4am, Spence comes to bed, and Addy plows through the door. We don't think much of it, until Addy sees Dexter, CHARGES at him, aiming for his FACE and they turn into a ball of growling, screaming, hissing fur. We have to dump a pile of clothes on them to separate them. So Dex spends the night in my room, terrified, and Addy out in the house. Come morning, Addy's still whining at my door to be let in. I have to "exchange" the cats, because Dex is still terrified. (sitting in a little ball, tail between his legs) When the switch is made, Addy's running around my room purring and wanting to be petted, but still looking around everywhere thinking she sees Dexter, randomly hissing at the air. What. The. Fuck. do I do? I can't let them in the house together or they'll rip each other apart. They've never ever fought like this. hellllp.