should I do some something about this

I have a 2 year old daughter. my bf and I love with his parents right now. my mother in law is constantly and I mean constantly fling this with or too my daughter when I all her not too. of making comments when it's not her place. my bf and I seriously never fight, but when we do it's always about something she did or said. she is putting a major wedge in our relationship. I have asked him to talk to her but she (and I'm not saying this because I don't get a long with her) is an alcoholic and honestly you literally can't have an adult conversation with her or she throws a fit like a child and i'm not exaggerating. she has been to a mental hospital 6 times in the past few years for suicide attempts which she admitted she does for attention and it's usually when shes super drunk or fighting with one of us in the house. I mean she is always cold 90° out and she's wearing a long sleeve so one day she watched my Daughter for about 30 min. she said can I take her outside I said yes that's fine well I go too grab her and she put pants and a long sleeve on her!!! I said are you crazy and her reason was because of the sun. so after that I started having to tell her not too put certain clothes on her at certain times. well I found a bag of clothes that she had bought and hid so when she watches her she can put what she thinks my daughter should be wearing. I have told her no pop she gives her pop I tell her when she's drinking she's not allowed around her and I'm a bitch because i'm keeping her from her grandma. well long story short literally no one said anything to her because they know she will flip out and have an episode. which personally I think she uses to her advantage. so I always feel like my bf is more worried about her feelings then our relationship which I haven't told you guys a quarter of the stuff she has done. I'm not asking him to choose I just want him too respect me enough to say something. I shouldn't have to compete on how to take care of my own cold. should I put my foot down or just ignore everything.