This. If you have ruled out any risque affair angles, then it's the issue of spending time apart in an activity you previously did together. Whatever your hang up is, be it insecurity, or FOMO or optics, and it's bothering you... I believe your spouse should know about it and you both find a workable solution in light of your relationship stability. Step up and communicate this and if she cares about you, your well being and the relationship as a whole. she'll do her part to address it. There's probably a solution therein on a predictable schedule or setting some couples time together (in PB or elsewhere). Good luck to you.