The whole debacle puts us in the precarious position of deciding what behavior outside of government office is unacceptable. The Democrats told us that Clinton abusing women was acceptable. So why is Porter's behavior unacceptable for a lesser position. If Porter had been smoking weed, having sex with porn stars, having sex with Congressional Pages who were minors (Gerry Stutts), is that a firing offense? Is the mere presence of an accusation grounds for dismissal?
Where is the line?
A couple of ex wives who claim they were treated badly may make a guy someone you don't want to associate with ... if you believe them, that is.
But a security clearance is based (I think) on something in your background that might make you ripe for being blackmailed. Since everyone already knows everything that happened and a lot that didn't, I don't see the blackmail problem.