A good friend of mine who is single and likes travelling asks me every six months or so if I'd like to go on holiday with her, most recently to New York. It's nice to be asked but I always have to say no because I'm a single mum and just don't have that kind of spare cash, at all. She's very well off but knows my situation. AIBU to find it odd that she keeps asking? I just have to say each time that it sounds lovely but unfortunately I can't afford it which gets slightly depressing tbh!