I understand how you feel. My T doesn't go away quite as often, but she went away three times last year in a short space of time (despite the covid travel restrictions which ended up with her struggling to get home) and this year she's going away twice in the space of a month - a two week break followed by a few days at home and then a week's break, both abroad.

On the one hand I know she's entitled to do what she wants but on the other it's incredibly upsetting and makes me feel really angry. Yet there's nothing I can do/say.

I know it's horrible.