I can only add to this. We stayed with two much loved lady cats - sisters who lived to age 21 and 22 and so glad we did, because they do focus on their owners at the end. A very painful loss was my beloved tom cat who died at the age of 13 after an 18 month battle with Lymphoma. The lovely vet who treated him, gave him 15 good months of life with us that he wouldn’t have had without the treatment - thankfully he was insured - and at the end I was cuddling him as the end came. He was reassured and peaceful, and the vet echoed what’s being said here - it’s sad when owners can’t face the end with their pets, as they do look for them. There was a poem on the wall of the University small animal hospital where my Bruce was treated and eventually ended his life. I’ve written it in its’ entirety below, as I think it says it all.
The Last Battle
If it should be that I grow frail and weak
And pain should keep me from my sleep,
Then will you do what must be done
For this - the last battle- can't be won.
You will be sad I understand,
But don't let grief then stay your hand,
For on this day, more than the rest,
Your love and friendship must stand the test.
We have had so many happy years,
You wouldn't want me to suffer so.
When the time comes, please, let me go.
Take me to where to my needs they'll tend,
Only, stay with me until the end
And hold me firm and speak to me
Until my eyes no longer see.
I know in time you will agree
It is a kindness you do to me.
Although my tail its last has waved,
From pain and suffering I have been saved.
Don't grieve that it must be you
Who has to decide this thing to do;
We've been so close - we two - these years,
Don't let your heart hold any tears.
Weeping as I write.