Hi, My girlfriend has two cats, one is oneand the other two. We initally had Gwen (the two year old) and after a few months she became very needy, so we decided to get Cleo (the one year old) to calm her down and play nicely. This was great for the first month or so, to the point where they both would constantly be around each other, sleep together and generally be very close but as we went on, Cleo has started chasing Gwen constantly, to the point where Gwen is hiding. We've tried feliway, playing with Cleo for hours, general tips to try to teach her not to go too far but it's gradually getting worse. To the point where Gwen has poo'd on the floor and Cleo is also stealing Gwen's food. We've even tried separating them,all to no avail. It's almost like they're jealous of each other. Is there anything else we can try? The last thing we want to do is have to put one back into our local cat rescue. Any help would be highly appreciated!