Hoping to get married in 2021 (hoping being the operative word!!). My mum has bought her outfit and she doesn’t want my MIL in the same colour. I told my MIL not to get the same colour but now after browsing she is saying she wants that colour as she thinks it will suit her. I wouldn’t mind her in a darker shade as it could tie in together but my mum is saying she would be unhappy about it and it’s causing her anxiety. Do you think a darker shade would be OK or is MIL being unreasonable not choosing a different colour?