Izzy is an interesting social case. The immediate up and disappearance of her seems to stem from more potential issues within their family - mostly around her mother. I am sure her parents never agreed with her social popularity. It seems clear from what I've seen she is suffering from the middle child issues and has been pushed out by her older sister. She is non-existent from any photos she posts and seems to be the mom crutch with her younger sister. Sad to see her pushed out from what it seems like.
Honestly it’s like the sister is jealous of her. Her sister tries so hard to be an influencer and Izzy got all of the attention. Classic talented vs non-talented sister is what it seems and sister her sister is louder, she gets say