Frankly, I have mixed feelings about this. I feel sorry for the guy, and can sympathize with his desire to focus on his future and not his past. But some fuck-ups should haunt you for the rest of your life.
If I were a prospective employer, I'd want to know this guy could probably never get a security clearance, and if I were a prospective date, I'd certainly want to know how he deals with exes. :-\