Aromantic: means that an identifying person does not feel romantic attraction. Might not believe in romance, only everything else in between. Including, casual bonding activities. (Yeah, it's not all about.. you know.. nature doing its thing.)
Does that mean, no movies, no restaurants trips and etc? No actually: because an aromantic person may go to the movies, or anywhere with a friend or their family casually.
They can still go to a movie with their partner, or partners. without any romantic ideals, and it might still be considered just as a casual visit to the movies, or they might just casually go to a restaurant to eat some foods together.
It wouldn't be looked at as romantic to the aromantic person in the context. Now to the partner it may vary on how they perceive it but certainly both will see it as quality time together.
Happens, although those situations aren't always in a dating context. Always helps to find out ahead of time what that person you're going to various places with might view of it. That ghosting experience, can be very real especially if you don't know what might had triggered that.