There was a comment here that I was responding to, which I won’t directly reference out of respect:

That sucks. It honestly may just be a matter of you finding your stride and feeling more confident that she’s perceiving as a threat, and not necessarily in the sense that she thinks that you’ll cheat or leave or anything. It could be just be magnifying the fact that she is struggling with things about herself that she wishes were different.

Or it could be something else entirely, even as abstract as stress or as biological as hormonal changes, things that have nothing to do with you or her self-confidence. Either way, it’s sometimes hard to get people to open up entirely about what’s on their minds and sometimes we miss subtle hints.

Is there any way for you to sit her down and get her to bond with you and open up in an organic way? Like a hobby you used to share, or an activity that will remind her of why you chose each other in the first place? Or do you think maybe marital counseling could be an option?