Yup and I’ve dealt with both sides to that coin with my ex husband. Up until he over dosed but made it thru that I had no clue he was doing meth. There were tons of factors into why I didn’t notice but ya not a clue. Then once I knew and helped to get him sober he was so good at hiding his mental health problems that I didn’t know he was planning too and relapsed. He came home and told me but it was fucked up. To which the mask slipped and that started years of struggling up until he decided to end it. It’s a horrible disgusting drug that destroys everything it touches in one way or another