I think it's interesting how differently people react, and that for some people this could be a useful technique to employ. If my T would mention anything about his relationship I would hate it, and I'd be disappointed in him. (I don't know if he is in a r/s though I assume he has been at some point, if he isn't now.) I don't understand how saying "Look how successful I am and how broken you are" or "My relationship problems are worse than yours" could ever be empathetic, from a friend or a T, but maybe that's just me.

I'm just mentioning this to illustrate that different clients have different reactions, and your reactions are valid - if you react or feel less than comfortable when your T does this at every single session, then that is how you feel, and it is an important thing to mention.