tigerlily421

HELPP ME!! Me and my boyfriend adopted a Calico kitten back in march, and decided to get her a companion three days ago. when we brought him home we introduced them through the door, and than face to face. It didn't go well so I researched online what we were supposed to do and it says to do the process slowly. We've been trying to keep them separate as possible, but its hard to do because of the litter boxes.
I can understand the calico's hissing and growling when the new kitten is around, but she's now acting horrible towards us. she wont let us hold her, she growls and hisses menacingly at us, and she spends all her time under the couch, even when the new kitten is in our bedroom. I've heard that Calico cats can be difficult to get along with other cats because they are territorial, but I just cant understand why she is so angry with us! If someone has any ideas or advice, please please PLEASE let me know! Im starting to worry now. It would be greatly appreciated

thank you!!!!!!