WOW 13 years?! That's insane. But they do say "you can't beat a cat at a staring contest" so that sounds about right lol.
No more grudge with Gizzy. I have petted him and picked him up, just don't have any words to say to him at the moment.
I have thought at times he might be better to be somewhere where he is the only cat, but at the same time being uprooted doesn't seem like the best idea either.
So I am going to try everything in my financial power to try and find a solution before I have to think about rehoming him.