One of the ways I realized my current boyfriend was a man of good character is that he has never spoken badly about any of his exes, ever. I think it also shows a respect for the ex as a person when it comes to their privacy. The way he handles it has made me more aware and trying harder that when I do bring up my exes, I can bring up lessons I've learned, but I should be careful about respecting them as people.
Thanks for writing!