I got on well with my DSis despite her overblown sense of self and pathological lying mainly because I would catch her out and not fall for it. She's a lot younger than the rest of the siblings and has been totally over indulged and has a massive superiority complex, forever trying to 'make it' through hare brained reality tv schemes or get rich quick things when she and her 'D'P are funded mostly by his über wealthy parents. She has found a partner who is universally unliked but DPs again indulge this. Even when they turn up to stay for days, pretty much unannounced. For example, three days after we moved into new house and in the near future bringing his family too!!!
I'm getting miffed because she keep posting things on social media like she's so bloody perfect eg having a pop at people who like. drink when she has been banned for drink driving. Or her current one is to body shame others when she has very disordered eating in the vain hope of being a model. It makes me so bloody angry!
I can't confront her directly because it causes such tension with DPs. So have to content myself with reporting her bloody posts!!