She probably has given up on Nino, and was afraid that there would be whole series of expensive tests, whera being PTS is a one time fee and thats it.

How sad is that that this Loving Cat is not worth fighting for.
I was told that I was crazy for getting Root Canal for Michael aka Mr Purr, as it was expensive and risky at his age, but its made a world of good, and has given My Orangie a good shot at being 20.

And that I am a Sucker for feeding the Porch Cats and trying to help them , and paying Vet Bills for them to see that they are PTS with dignity, and will be buried where they are blessed.
Well its thats being a Sucker , I am Elmer Fudd and Bugs Bunny has just tricked me into running off a cliff!!!