SciDad...don't play P.I. The only person it hurts is yourself. Would you stop trying to save your M If you found confirmation something was still going on with OM? Probably not. But you would would give yourself fresh agony to deal with. It isn't worth it.
I concur on the frilly underwear. Most of that stuff isn't terribly comfortable, and the stuff that's comfortable doesn't look good under work clothes. It isn't necessarily anything to be concerned about.