My ex took Kittie for a while until his new gf wouldn't let him keep her anymore at their apt. Kittie came back home.. This was a couple months ago. Before that Kittie and Lillith were always living together. Lillith has always been a little jealous of Kittie (growls at her, hisses and runs when she runs into her around a corner). Since my ex brought her back to me, this behavior has gotten a little more intense. Not to the point that theres a fight. It used to be that Lillith wouldn't growl at her all the time. Now she does it any time she sees her. To the point that Lillith won't sleep with me if Kittie is anywhere on the bed. Kittie seems to ignore her. Any advice on helping keep a peaceful home?