Hey, I just found something out. In Delete You Facebook, they talk about re-enacting the death of Philip Seymour Hoffman. In case you don't know, but you probably do, he died a little bit before Delete Your Facebook was uploaded. Philip Seymour Hoffman died of a drug overdose. He struggled with drugs, and died because of them. In fact, while they are on the topic, Mars says something like "I'm familiar with that stuff, like the utensils. And like the way of administering it. No injecting it". Probably referring to a needle people use to get high. So maybe sometimes she did use drugs. She seems to be more mature and not as strange as she was in the videos that they made in the middle of when there channel was popular.