OP here. Didn't think this would have posted, let alone so quickly. I spent the first half of my evening thinking about what I may have said wrong. Do you know a 'realization' moment, like in the cartoons? That's what it felt like. She didn't make eye contact with me the entire evening, and I felt terrible afterwards. Also yes, pitching a tent is correct, but it was both translated from Dutch and close enough for it to be extremely awkward. My friends couldn't stop laughing though.