Had a friend stay last week overnight who lives in a different part of the country whereas I live a major city. As a parting remark, I said if you ever need somewhere stay in (big city) our door is always open. Didn't think too much about it. Received a text today asking if she could crash tomorrow for a couple of days for some interviews. Normally wouldn't mind but it's our wedding anniversary & we have a romantic night in planned. Replied 'we'd love to see you but have xyz planned for wedding anniversary'. Thought that would be the end of that. Reply 'oh no worries, I'll just pitch up late and have lots of prep to do so you won't even notice I'm there'.
Slightly aghast. Although, I did offer.