She's had problems with her weight for a while (remember those summer vlogs where they were all in the pool and she was sitting there in a jumper?!). I would have sympathy for her but she has no excuse to not exercise and prepare healthy meals, what else is she doing aside from going to coffee shops and getting Sean to take a pic of her in that same jumper/skirt/trainer combo?
Out of the whole group I find Poppy the most deplorable. Despite being super greedy/entitled now, Alfie/Zoe did do some work to establish their names in the early days of social media (he daily vlogged/her vlogmas posts were always engaging). Poppy is just a leech, the most boring person on planet earth yet she somehow has over a million followers. She's like this middle-class parody who solely exists to fill her house with tit from habitat.