Is santa muerte real?

hey yall so long story short my boyfriend had a dream about her and he said he dreamed he was around fire and candles and she was in front of her and that he woke up all crazy and cause he felt someone touch his hair and now when i saw him his neck was scratched and scraped off from both sides he says he dont know how he has that he said its been burning hes only 16🤦🏻‍♀️ he has stickers ring of her listens to music about her and hes planning to buy a statue