This just proves what I've said, is all it takes is one complaint and your career will be over. Best to keep your private life ultra private. As soon as you have one misstep at wirk, they'll grind you into the ground over it. All it takes is that one employee, who thinks the answer to any slight at work means "they need to be fired". I've seen this too many times.
I think he's doing the right thing. Defend yourself if you've believe you've done no wrong.