The joke on stage

Two identical twins walked into a bar, and the bartender asked, "What's the difference between you two?" "About twenty minutes," said the one who was born first, "and he's been trying to catch up ever since." Wait, I need to correct that. Here's a cleaner version: My wife asked me what the difference was between my ex-wife and me. I said, "Honestly? She's still in the wedding photos. I'm the one who's been cropped out."