Be thankful that you got to cuddle him just once before his time comes, Siou2. This is his gift to you, just this once, he loves you very much indeed.
Love comes to us all, eventually, at some in this life - as this old guy has recently found out under your care.
For others it's what comes afterwards.
I know what you are anticipating tomorrow and it does sound that his fate is written.
Baldrick will appreciate your presence at the end, you can talk him calmly through it then fall apart afterwards, your vet will be kind and thoughtful. Be ready for him to pass with eyes wide open, but your presence will calm him as he passes, he always trusted you, he just didn't know how to show it.