Google is your friend. Multiple felony allegations, bizarre blackmail associated with his 50 shades of grey style affair, campaign finance violations. I'm not advocating for removal of Trident, but he is alleged to have done a whole lot more than have an affair. Whether any of it happened on AD is not relevant to any formal Navy admin procedure.
Seems pretty clear that he's not a particularly good guy and I think the NSW community would be completely justified in not wanting him out there representing them.