We see the ex a fair bit, and I'm pretty fond of her. I really can't imagine them as a couple: they are both so chronically indecisive, it's amazing they ever got it together or, for that matter, decided to call it a day. Guess it helps that they'd broken up a few years before I slouched onto the scene.
But I do feel frightfully modern when we all meet up for lunch (she has recently married). I'd happily go for a drink with her on our own.