As the title says really. (D)H and I haven't lived together for over a year after I found out about something pretty disturbing which I considered cheating.
He has mental health problems, but is able to work full time in a good job. We don't really get on and IMO he has controlling tendencies. He does give me quite a bit of practical support and we occasionally have days out together etc. We have one DD who will be 3yo soon.
It has been a massive relief to me to live on my own. However, I'd like to have more children, and I kind of think it would be nice for DD to have full siblings so they have exactly the same situation and can understand each other.
But what's sometimes making me have sleepless nights is the idea of DD's dad meeting someone new who will try to be her mum, impose her ideas and standards, dislike me/feel threatened by me, and lots of other horrible things. I read the step parenting forum sometimes, and it seems so awful to me. I know it's hard for stepmums too, and obviously they can only write from their perspective, but it would be so horrible to be seen as this controlling, demanding nuisance who insists on having a place in her own DD's life. I can't even think about holidays.
People keep saying no one can replace DD's real mum, as long as I make sure she has a stable home and a good relationship with me it'll all be alright, but I just can't bear the thought of someone else having so much influence on DD's life.
What should I do?