history: My cat has to be put down next week. She has been very sick for a month and not improving. My cat has to be put down next week. Oh no!  I'm so sorry_comma_ we just went through that with our pup.  It's a hard choice to have to make.
current: She has been sick for a month and is not improving.
next: I'm sorry you are having to make that choice, but I feel it's our duty to them to help them pass on when they are not going to get better and help them not suffer any longer.