Ok so I have really bad anxiety and overthink everything so looking opinions on this cos this is really worrying me. My brother has recently come into contact with a distant relative of ours, she lives in another country, they message each other everyday and she wants to come visit. He's planning on going over to get her and she will stay with him while she is here. They havent told any of our extended family that she is coming because she wants it to be a surprise, none of our family have met her before. I find this very strange, why wouldn't she let people know she is coming? I would not like a relative I have never met landing at my front door unannounced but I am not a people person so maybe that's just me? I just find the whole thing really strange she's a young girl 20, he's 43, if it was me and this was my daughter I would not want her travelling and staying with a man she doesn't actually know in real life in another country but he has spoke to her parents (who we have also never met) and apparently they are on board with it, I know she's an adult but just barely imo, am I overthinking this? Or is this weird?