If a 50+ guy is not in a committed relationship, is it because he hasn't found the one, or is there a less romantic reason for that?

In other words, should I run for the hills because he obviously has issues that I can't fix, and that he's never going to get married?

If a 50+ guy is not in a committed relationship, is it because he hasn't found the one, or is there a less romantic reason for that?
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