The Dating Life of my Exes

I have a lot of ex-BF's who are single. Not in a bit of a dating funk, more like they've barely dated since we broke up. In some cases we broke up more than 5 years ago. It just struck me as odd today when I (for whatever reason) started thinking about it - I wonder why this is. Here are some of the theories I concocted on my subway ride home:

• They can't get over me (you knew this was coming...), and cannot find anyone to compete with how amazing and perfect for them they thought I was.
• I scarred them enough that they're taking things verrrrry slowly before getting into another relationship. I have in fact heard one of these exes tell me that he thought girls were the devil (post-relationship), so this seems to be the more likely scenario.
• They're really picky. I do believe this is true in at least one of the cases, and in this case by picky I mean they have a way over-inflated view of themselves and believe no girl is good enough even though that's wrong. Not that I'm bitter.
• But really, they're picky. For the most part I think guys that remain single for a long time know what they're looking for and will not settle for anything less. Not necessarily a bad thing, but probably makes their bed pretty lonely on those long winter nights.

Your guess is as good as mine when it comes to why I was even thinking about this today, but thought it would be good for a laugh.