My friends wife is back on the CC - Should I tell him.

Asked to delete a thread in MRP and post it here.

A good friend of mine has lost a fair bit of frame over the last decade, and seems to have become a fair bit more blue pill.

Over the weekend, he bought his wife and kid around for lunch. Lunch rolled on, and She heard me say my mate Dave was coming for tea.

Now, she did not know Dave and has never met him. He's a 24 year old, single bloke.

She drops her Husband and Kid at home, comes straight back and starts some hard core flirting with Dave in my house. Not subtle, no shit tests, IOI went from 0 to 100 in 3 seconds.

This pissed me off, more that she comes into my house and my frame to pull this shit? I was best man at their wedding ffs.

I shut it down, and threw her out. But I'm unsure how to proceed from here.

I have suspected she's been cucking him for a while now, and I had assumed that she was commiting relationship Harri Karri in front of me, so I would report it back to her husband, and she could hamster her way into blaming me for her marriage break up.

Points bought up by MRP

1. I have a justice boner and having a white knight fantasy.
2. He's into this sort of shit and more than likely knows already.
3. I should drop the facts, nothing more and let his BP brain deal with it however he sees fit.

How should I proceed?