It sounds like the younger guy may already be in a committed relationship, and is not sure if he is ready to abandon this yet. Again even if he did, how could you be sure he wouldn't attract interest from others? My friend met a guy like this, in less than a year he left her for a girl I forget the name, Chelsea perhaps.
It sounds like the older guy is a much better long term prospect, and although older is still a few years younger than you Steve.
And don't waste your time with those chuckle brothers.