OK Babs, seeing as nobody's given you a straight "NO" yet, I'll say...don't do it. Just my 2p, but do realise that if/when you ever meet her new squeeze, your inner alpha viking berserker WILL emerge and you'll want to smash his wanky head in (or at least see him humiliated and laugh at his misfortune). He'll also despise you, despite civil appearances. Your ex'll be yapping, "Oh, this is Baboon, one of my closest BLAH BLAH BLAH", cos she'll be totally oblivious to the unspoken DNA clash building up between the two of you.
I reckon, cut her loose. Imagine she's been sucked into a black hole, and all you can do is shake your head, shrug your shoulders and get on with your own stuff. It's just you and your ego now, so don't put your ego at risk by doing something insane like getting drunk and ringing her ("as a friend") and blurting out, "Are you seeing anyone?" And don't let people tell you, "Oh, that's such an immature attitude, I'm still friends with ALL my exes!" Those are the kind of people who voted Lib Dem, or who buy Brazil shirts in the quarter stages of the World Cup. Passionless.