Overheard at the grocery store just now

Two young girls, probably in their early twenties, are standing in the check-out line when one of them turns to the other and says in a tone she might use to talk about her nail polish, “I haven’t heard from Christine today. I guess she overdosed.”

Do you think one of the reasons Christine might have overdosed is that the friends in her life, when struck with the possibility that she might be dead, do not check to make sure she is fine and instead hit the grocery store to buy some Gatorade?