that darn cat

I don't want to be a 'cat lady' but every time I get a cat, they multiply. My cat, Theo, her first litter was only two - and I got rid of one when they were old enough. The other kitten, Delilah, drives me crazy. I can't figure out how to potty train her, I've done everything I would normally do but she is extra stubborn. I tried making them outside cats but an opossum would eat all their food and that gets expensive! Delilah would poop and pee on the couch. Then she started pooping in the litter box and still peeing on my couch. I began to think she was doing it out of spite because one day I was doing laundry and she popped a squat on my pile of clothes while looking up at me. Now she poops beside the litterbox and not in it. Theo had another litter of two kittens and I feel like she nelects them and shows more attention to Delilah, who still tries to feed off her when she is way past eating on her own. One of the two kittens is sooo much smaller than the other, and Theo doesn't seem to care. My cats are bitches.