I didn't know her best friend died too? that is so tragic.. I wonder if the mental health issues started before or after her mum died.. poor thing.She suffered a lot of mental health issues, then with her mum dying and then her best friend dying I think it just tipped her over the edge.
I doubt the reason the twins don't live with mark is because of school districts, because they went to a private school so that wouldn't matter, it must have been something else
I wonder if Lottie & Louis still do drugs after what happened to felicity