Cousins are the friends you were assigned. The good ones still choose you every holiday.

Family hands you people without asking either of you. Some of the closeness is only proximity and some of it is genuine choosing, and the two can be hard to tell apart until you notice who keeps finding you in a crowded kitchen. The ones who look for you are doing something optional.

Think about which cousin you are actually glad to see, then do one thing outside the holiday. Send them a message in a random week about nothing in particular. A relationship that only happens on scheduled days is at the mercy of the schedule.