A woman finds a strange teen boy homeless in a lighthouse and they become friends

I think I seen it in the mid 2010’s on the MovieTime channel.

A young woman who has recently broken up with her boyfriend, ends up at a lighthouse on a beach, she finds a teenage boy who is living inside, he’s homeless and has nobody.
They sort of become friends and they drive around in her car to a few places, in one scene they go to like a Victorian ballroom where they wear old vintage clothes and dresses and they dance.