I'm sorry for you, too, but at least she's an "ex," and you DO have a good way of getting rid of her, even if it's only temporary!(I think you could be my cosmic twin!)
I have a 22 ear old puddy cat that owns my heart. She been my girl since she was around 4 weeks old and slept her first night in our house on my chest. The ex is the only one who can take care of her when I am gone for two weeks at a time at work. I tried letting my mom take care of her when I was gone but my cat went mental over that. My girl loves my mom, comes running to see her when my mom walks back here to visit and will even fall asleep upside down in my moms lap. Yet when I am gone to work she is very unhappy unless the ex is taking care of her and of course she needs her dog, my pit bull Rascal to be here too. So as long as my old phart girl is still among the living with us, I am stuck with the ex.
Some think I am an idiot, or a fool for letting the ex stay in my life but I made a promise to my furry little girl years ago when the ex and me first split after I caught her straying. I promised my little girl that as long as she is alive, she will have a home with me. I never broke a promise in my life and I have no intentions of doing so now, so if I must put up with the ex in order to make my cat happy, so be it. Thats the road I must travel.
(I think you could be my cosmic twin!)

