Well, He (her first husband) died in 2019 (not that long ago and there is a record). Lot of people die when they are 68 years old!
And he was probably private person, who maybe got cremated (most people do nowadays).
Their divorce was not friendly at all, and he was bitter about her to his dead, refusing to talk about her (I would be too, if my wife run away with a dude who could be my son!)
I know bunch of children, who do not keep up with their parents.
Nothing from the above means that their mother is a guy?!
But I also know that she is 71 years old.
Her children are in their 40ties and 50ties, similar age to her husband!
She looks old, but pretty female to me!
Aged cougar, yes! Dude, not!
—> She looks old, but pretty female to me!
Your gaydar likely needs replacement.
Given your age, this is likely no longer covered by warranty.
Sorry.