That's it really. I've felt massively resentful of my partners ex wife and tuts spilled into me projecting that into my step children.
I've realised it's jealousy on my part and deep insecurity and feeling inadequate.
I'm sad that she doesn't work and gets to be a sahm even though her Dc are at full time school and I have to leave my children and very small baby and work nights meaning I'm exhausted and feel constantly in the back foot and playing catch up where she gets 5 hours a day to clean and sew badges into kids uniforms and do stuff.
She's always so well put together and gets time to bake. I feel guilty about the disparity between my children, my child with DP and his children with her. There's a massive difference in finance available, time etc
I'm jealous. It's not attractive. DP won't say no to her so I feel left. Since our baby has been born she's got worse and more demanding. For example she insists he goes to hers to drop things off etc and she hasn't gone longer than 48 hours without seeing him in the last few weeks. Meaning he isn't here. He runs around after his 2 children even though she doesn't work - he does clubs after school because she can't cope doing it as apparently their Dc behaviour is too naughty for her to take them on her own.