Torture.

How do animals have such a powerful hold on our hearts? 
How can they bring us such joy and happiness with their presence and destroy us when they leave?
How are we supposed to know what to do?
How are we supposed to make this decision?
How is my Mox the source of so much heartache? 
Can't she just get better?
Can't God just go ahead and take her and spare us the torture of deciding?
Can't I just have her forever?