Letting wife alone with new man

My profile name is a bit misleading, in fact I’ve advanced from wanna-be to something like “beginner”. It has been a long journey, from secret fantasies to sharing fantasies with my wife in bed (with positive response) to more and more “realistic” games involving dildo and role plays. And then one day I took the chance and gave my wife a gift card to a threesome.

The threesome was a great success (I picked the extra man) and later we had a few experiences with a couple at a hotel and a couple in a club. All participants were someone we picked together and had good communication with before. And while the foursomes have been starting out quite equal, they all ended up with the man in the other couple taking my wife while I took a more passive observing role. With the threesome, it was even more evident, and the first coupling even happened in the bedroom with me in the living room. It was my suggestion, but my wife was very fast accepting to get a bit more “privacy” in the beginning.

And all though the foursomes have been enjoying for me too (being with other women), the extra male for her and especially her and him alone is what we both find most arousing. Unfortunately, we only saw each partner once all though a recurrent setup would be nice.

It has been 8 months since we played last time, and now my wife has met a guy in town while she was out alone. She was quite drunk, and she admitted she has danced a lot with the guy and even kissed passionately a few times, even in front of her friends. At first, she didn’t admit she got his contact details but after a couple of days she remembers his last name and also found him on the web, as we are living in a relatively small community. I texted the guy, and he seems quite nice, but also with some drive. I encouraged my wife to contact him too, which she did a few days back and immediately they started texting very hot messages. I have not been “allowed” to see their correspondence so I only have it second hand, but it seems like they are quite aligned about their attraction and even discuss how to meet all three at a hotel and then get up in the room while I wait at the bar or outside to join later.

I’m at one point very aroused with the thoughts of them being alone, on the other hand I’m feeling a bit put aside with their close and intimate text dialogue. They guy she’s in contact with is a business man in the early 50’ies (she’s mid forty) and a few years older than me. Clearly an Alpha male, while I may be a bit more beta. My wife is clearly submissive, and even if u try being Alpha and dominate her, I also feel she’s looking for more than I can get in that aspect being a caring and gentle husband

The communication between him and I is going quite well, but he clearly has his focus on my wife and wants to be alone with her too.
Should I be concerned? Or should I just enjoy the game and the fact she might have found a real “Dom” who can lead her to next levels?