Okay so my mam was dating this boy when she was 15-20 and they broke up before she married my dad. My dad and her were very happily married for almost 20 yrs but 10 years ago he died from cancer. For Nine years after his death she would refer to him as the love of her life, would talk about him all the time and would talk about her fairytale marriage. My siblings and I were very close with my mother (literally do everything together) . She didn't have anyone else so she would depend on us greatly. she was the best mother at the time. But last year she rekindled her relationship with that bf from her teenage years and we were super happy for her and super supporting but we have no relationship anymore. We don't spend time together at all and we just have casual conversations. We have brought it up a number of times and she has completely victimised herself and has told us she is sick of us and we are a nuisance and that she's finally happy which makes us feel terrible because she always implies her life was terrible before she found her way back to that bf and now when my siblings and I need her through a rough patch, she's not here for us at all. On top of that she bad mouths my father and acts like he was some terrible ex in front of her new bf just so he doesn't feel bad and it really hurts. The bf moved in so soon. My dad's pictures came down quickly and they are already engaged. We have been suffering for a year and sat in silence while she lives her best life at the cost of ours. my sister is constantly crying over it because she is the eldest and she was my mams best friend and it's destroyed our lives. My mam went to our uncles and aunts and started lying about us behind our backs to them and they verbally attacked us without our side so we have no one. This is going to sound terrible but when i used be suicidal, I wouldn't kms because I didn't want to hurt my mam and now I know she wouldn't care if i died and honestly if she died I would be heartbroken because shes my mam and I will always love her for how amazing she was years ago but she's a different person now. She is obsessed with her bf and has spent more time with his children then us and she admitted to it but she doesn't care. She has a smug look on her face and it's very sadistic. So I don't want ways to approach her because she will not listen but I just want advice on how to get through this. Its impossible to live with someone who used be your world and now is just a terrible person. I feel like I'm drowning.