I guess I thought her opening up and complaining was good
No, not even close. It's UNHEALTHY and TOTALLY DISRESPECTFUL for a wife to talk (even if it's complaining) to her husband about her BOYFRIEND.
Can you really not see that???
Do you want to convey "strong, attractive leader" to her or are you shooting for "gay boyfriend" territory?
I'm sorry to be harsh, but that's the best descriptor I can think of to describe what you're talking about here. It would be good for your wife to discuss that with her FRIENDS, or with her COUNSELOR . . . or even with you, once you two have reconciled . . . but NOT NOW!
Totally outta line, and I'm TELLING you (but you haven't listened) that she is LOSING RESPECT, LOSING ATTRACTION, and therefore LOSING LOVE for you every. single. time. you. do. that.