I am not divorced but for the last two and half years or so, we've had many conflicts and I therefore thought this might be an appropriate place to post.

For a little context, in this time, I've sacrificed a well paid job working away from home, ended up taking a demoted role much closer to home. Far less stress but I did this to keep our family together as we have a teenager.

I now do the bulk of the housework and day to day operational things within our home as I have more time after work and wife's job is demanding.

Although I'm not feeling fulfilled right now, I do at least have a decent relationship with my child and a home.

On to the holiday. So i was asked by wife tonight if I minded her going on a girls holiday where they will each "pretend to be the hen" on one day. All but one of these friends are single.

I'm seeing red flags from this comment alone.
I don't see why any married woman would need to pretend to be a hen on a holiday when they are actually married already.

I just don't understand this particular aspect. It fiĺls me with suspicion.

Our intimacy has become extremely rare and I can't help but think that while she's away for a week on a hot Mediterranean island in the summer with multiple single female friends, what happens there will stay there.

Any thoughts?