I've been in a relationship for a few months.
Partner, bit older, Says he has never gone out without his partner in previous relationships, and would not do so.
He seems to think me expecting to go out without him is weird/inappropriate. This crops up almost every time I go out without him and is becoming a source of friction.
(My sisters, in fairness, dint tend to go out without their partner's. A coffee in the daytime would be the height of it. I've always been more independent though).