I interpreted it as Zanna saying “have some decorum” about her friends taking a screenshot. Either way it’s rude to them! No wonder she has no long term friends and has a new man that is her “bestie” every 6 monthsI interpreted as - she has a group chat with old friends. One of them shared a screenshot of her and Ollie to the group chat and said 'have some decorum'
I'm sure her friend will be very pleased to see that being shared! And calling people 'morons'. Lovely