I found a suicide note that my 13 year old daughter wrote.

I need some advice. First of all, my daughter is still very much alive. I went into my daughters room this moring to let her cat out and saw a note on her floor that said "Read this ASAP". It was dated 10-16, the day of her 13th birthday. I won't type the whole thing, but she mentioned that she was happier now that she's dead and that shes sorry for not being a better friend (she's dealing with typical middle-school drama) and that she's sorry for not being the princess I wanted. I'm not sure why she would say that, I've always let her know how much I love her and how proud I am of her.I know I need to talk to her and probably get her someone to talk to, but what I really need help with is if I should tell her mother or not.Her mom and I divorced a couple of years ago and our daughter decided to live with me. My ex-wife can be very selfish and make everything about her and I'm affraid that if I tell her about this note, she'll do just that, make it all about her. My daughter mentions her mom once in the letter saying "Mom, I don't know what to say. I've been struggling since 2014. You were most of the reason."I dont' know what to do. I feel like I should tell my ex, but I'm afraid of how she will react. There is a chance that she'll be civil and "adult" about this, but there is a greater chance that she'll make things worse.Advice?TL;DR Daughter wrote a suicde note, don't know if I should tell her mother. via /r/Parenting http://ift.tt/2eBfFFd