Long story short- sister is a nightmare. Demanding, horrid but completely in denial about the state of our relationship and thinks we're still besties like we were aged 8. She's broken our relationship by a thousand cuts and by never contacting me or responding if I call or text. Our parents also like to believe we're still close. I've put up with a lot over the years and I'm now done. However I don't want to upset my parents. She wants to come and stay (read: be waited on, boss my children around, never help or contribute to anything, act put upon if any of this is mentioned) I don't want her to stay but she lives miles away so can't just pop in. I can put up with her for an hour or so but no more. How to proceed? If I hinted at air BnBs all hell would break loose (cue tantrums and tears from her and gravely concerned/hurt calls from our parents). Ugh.