2) Shawn Levering is a caring owner who only wants the best for his pets. You can tell the he loves Lady because he is going through all the trouble to get a kidney transplant for his cat, he is willing to spend a lot of money for his cat.
3) Cathy Langston is nice and cares about saving Lady's life. You can tell because she gives her dialysis.
4) I think Shawn is willing to pay that much because he really cares about Lady. He seems like the kind of person who would expect to pay that much since he paid $400 on getting Lady's teeth pulled.