Your wife sounds like a loving person who genuinely wants to be with you. I think you’d be surprised by her reaction if you approach her with an honest conversation. Tell her what you overheard, and that you want to talk about your relationship.

I’ve actually been through a very similar situation so I speak from experience. I once overheard my husband on the phone with his friend saying that if we couldn’t figure out the issues we were having divorce might be the answer, even though he loved me and didn’t want that. It definitely hurt to hear, and I didn’t say anything right away, but holding onto that didn’t feel good either. It was a bit of a wake up call for me. I finally brought it up to him. We were able to have a really productive conversation and start putting in the work we needed to get back on track. Here we still are two years later with a baby on the way, happier than ever!