I have an 11 you stepdaughter and have been married to her dad for 5 years, together 6. I met SD when she was 5. My H had SD at 22 with a manipulative, selfish woman who never loved him. She tried to alienate SD but finally gave up when she realized my H wouldn't sign away his rights.
My SD used to ask me when I was having a baby. I have been working on my career and that still isn't an option. Her mom has a 3yo boy and 2yo girl. SD doesn't like being a big sister because she was such a spoiled only child.
Last week, I made a comment about having a baby one day and SD, being her inconsiderate self, says "I already have a brother and sister". I was so frustrated that I flat out said "well your dad is allowed to have kids too. You used to ask me for a baby when you were younger" I wanted to tell her she was being a rude snot and I don't care what she thinks.
Because of the alienation tactics, SD is very close to her mom and pretty much walks all over my H. He allows it because he doesn't get that much time with her. I got really drunk a few days after that and told him I hate him and his bastard kid. That's definitely going to leave a scar on our relationship. I love my H and care about my SD but I wish I wasn't so invested because this is really wearing on me.
BM gets all of the glory for cheating on my H and being a "single mom". The truth is my H left because she cheated multiple times and used him as an ATM then spewed multiple lies in court and the judge believed her.