I posted a while ago about my situation as I was desperate for advice/opinions. I'm a fairly regular lurker/occasional poster but obviously not enough to know that reverse threads aren't allowed - I posted before as a reverse because I thought that would help me get honest opinions. Anyway this was deleted and if anyone remembers it I apologise for being misleading. I have name changed from my regular name to stop myself being identifiable as it is quite a unique situation (some details are also slightly changed for the same reason).
Anyway. I have three teenage daughters and we are having big issues with their stepdad. He picks on them massively and is making their home life miserable. It is something that has increased over the last year or two, and even more so in the last 6 months since I had another baby, with him. He has officially been step dad to my older girls for 4 years (although we've been together for 8). He basically has no idea how to parent teenagers and has very unrealistic expectations of them. I'm not saying I'm perfect or know exactly what I'm doing but he constantly criticises them, speaks to them gruffly and upsets them. I've spoken to him calmly, got cross with him, argued their corner so many times and nothing is changing. I've told him our marriage isn't going to work if things don't seriously change but he doesn't want to leave because of our baby. And logistically has nowhere to go.
Latest development is that the girls have spoken to at school about how unhappy they are and I've been called in to see someone this afternoon.
I don't know how to go about fixing this.