I've been asking myself this question for more than a few years now. Circumstance? Fate? Self-sabotage? My relationships have all been good, but always ended because of major differences (religion, life goals, opinions on children, pets, etc.) that keep me from marriage or other forms of life-long dedication. The jury's still out, but the longer this goes on, the more I'll be convinced I was meant to be single.
An excellent read. Well done!