My wife met up with a potential bull socially without me but with my blessing. She wanted to spend time with him getting relaxed before our first scheduled proper get together (all three of us). I knew there was a possibility that there would be some naughtiness. I requested pics.

She had agreed with him in advance not to take things further (beyond a kiss and a grope) in my absence as there were some "firsts" I really wanted to witness.

In the end they did not send any pics (too dark in his car in a car park).

Also she sucked him off, he came in her mouth and she swallowed.

Since then he's been very unresponsive and not shown up twice to prearranged gatherings for all three of us in airbnb's.

My wife then lied to me directly.

She has admitted this a week later.

What advice would Hotwives and Stags give me?