3 year old EA - where do I go from here?

[Matrix5]

Today while driving, she had mentioned that she had a conversation with a female friend of her who told her about all the male friends she has, and that her husband doesn't care that she hangs out with them. That he accepts it, and should he stop accepting it, he knows where the door is... When I agreed that her friend should have the right to hang out with them, so long as there's nothing funny going on, my wife shook her head and took it as an insult against her, as I was alluding again that she was up to something not kosher.

I asked her one more time to be open about it. That I promised her last year that I no longer care if she hangs out or talks to him, just be open about it. Let me know if she goes out to meet him, tell me. I asked her to give me a shot and try it out to see the response she gets from me.... time will tell, she seemed hesitant... she kept on saying that it doesn't matter because she doesn't see or talk to him anymore (lie) because I scared both of them. Of course I wanted to call her out on her lie, but I bit my tongue. Instead I said, "ok, in the case you choose to renew your friendship, I'm ok with it, just be open and forthcoming with me. She was hesitant, kept on saying they don't meet or talk anymore, and that it's hard for her to just take my word for it, because I've promised to be ok about it in the past, and yet kept on accusing her of doing different things with him behind my back.