If you have sex with your best friend's wife, you want to tell the reporters and hound your best friend and his families? You called yourselves gentleman for trying to be "honest" with who you slept with?
Yes. When you are a public figure, and the party image is going down day by day, and all the people around you are being hounded and harassed and taunted by MSM reporters -- then YES you DO have a responsibility to answer to your party leadership, seek their advice, and ask for forgiveness from the electorate once your party leadership is fully informed and aware of what's happening.
YSL chose to flee, to escape, and leave everyone else including HG residents to pick up the mess. This has nothing to do with fair or unfair. At the precipice, he chose to jump instead of standing up to be held accountable. Once he has fallen, who is to blame? Only himself.
Its nothing to do with gentleman or ungentlemanly.