It my birthday tomorrow. I'm not bothered, I'd be happy to have a birthday tea with my mum and an evening in with a film.
My friend, who is lovely, thinks I can't be on my own for my birthday and has organised a "surprise" that I'm not supposed to know about.
I don't know who's going, where we're going, what to wear. It could be something really wonderful, but I haven't had the fun of looking forward to it and planning my outfit etc.
I've also just been invited as a last minute replacement on something else. I'm not desperate to go and I've only been invited because someone else is ill (fine, I wouldn't have expected to be invited), but I'd have probably said yes, if I didn't think there's something else planned.
It's nice of her, but if she wants to do something, I'd have preferred it wasn't a surprise. AIBU?