A travel companion deserves a say in the pace, not only the destination.

Agreeing where to go settles less than it seems. Two people can want the same city and want different days inside it: one up at six with a list, the other happy to lose a morning to a cafe. Because the destination was agreed, the pace argument shows up later as irritation about something else, on day three. Pace is the part that determines whether anyone enjoys the trip.

Talk about rhythm before you book anything: how many hours out, how much planning, when the day ends. Build in time apart so neither of you has to be converted. Then check partway through rather than waiting for it to surface.