If the SO isn’t ok with it, then they feel like they are being cheated on.
It’s good that he’s open with her that he has been sharing this. However, if it bothers your SO/life partner/spouse….should you be doing this?
Either you respect them, or you don’t.
If you’re going to knowingly do something that bothers them, ask why you’re doing this and telling them you did it. Are you TRYING to hurt them? Or are YOU the one being selfish? Maybe you don’t want to be with your SO any longer and are creating a reason to split…
I would say they have 3 options really… stop it unless she says ok, do it and stop telling her you did it, or talk to a 3rd party about this and see what they think and where this relationship is going…simple.
My two cents….
Take care XOXO