Good luck and stay strong. And I would say do not do anything that jeopardises your daughter in any way, including her future relationship with her father, if he wants one. You could regret that so much in the future. But on Kipper, why not offer to get him another kitten to keep him company, using hte argument that Mushi and Kipper need each other. That is staying calm and amiable while getting what you want.