Bobby,
For many years my second husband would call me (once a year or so) to "chat"--and he was always drunk. I kept the calls VERY short, ended with, "Well, I have to go, please take care of yourself," and HUNG UP.
Yeah, he'd leave the odd message about our marriage vows, the fact that I kept his name (long story, but I'd already changed the name, didn't want to change it again, it sounds good with the first name). I just deleted.
It isn't worth even engaging or encouraging as long as they are still drinking. Pointless, upsetting. No reason to do it.
Hugs, hope you can let go a little more today.