oh shit i love the idea of them having crossed paths before, and having a friendly face in a place where she's essentially alone would be awesome. maybe we could say they were staying at the same place in europe and because they were around the same age they/their group of friends kind of gravitated towards going to a few of the same places together and spending time as a group? OR they could have met while she was studying in london using the same sort of premise? either way the fact that she knows him and that he loves coffee is going to make her latch onto him