I'll give a little backstory

My wife (39F) and I (40M) have been together for 18 years, two kids. We explored a lot for many years, and she discovered she is a bratty submissive.

After many years with long distance relations and even some visits, I successfully introduced her to a man that would fit very much in to what she was looking for in a d/s relationship. He is caring, understanding and assertive, giving her plenty of his time. This is also a LDR, but it's close enough that she can go visit.

During the summer, after a few meetups she started to have strong feelings of deep love. Enough that she was not sure how to tell me. Their d/s relationship is developing and I wish for her to have it and feel the positives.

I have a great dialogue with her dom, and he is mindful of what is going on. He has communicated his feelings for her as well, which has tightened their bond lately.

We talk about it a lot, but I feel like I'm nagging and being overly attached. She prefers conversations with him on the phone as it gives her a sense of peace. As I have now become a place of turmoil and stress for her.

I'm struggling to find a good course of action, as I know she's deeply conflicted. Her love for him is so intense now that she is feeling insecure about wether her choice of being with me was a right one.

I hope some in here can give me some advice on how to back her up in the intense emotional journey she's going through.