Am I a bad stepmom?

My fiance and I have been together for 3 1/2 years we share 2 kids and he had one child prior. We live in Miami right now and I want to move to Kissimmee because that’s where my family is because I will have a lot more help with the kids we will save over $2000 a month living up there because it’s a lot cheaper and I overall feel like I would just be happier. Right now he has some family but they aren’t as supportive as being close to your own mother that will really help you out some more. He says that he would, but he doesn’t want to leave his child (9 years old) from his prior relationship. I’m getting a little frustrated because I feel like I have to stay in Miami because of My stepchild and also move my bio son out of a great school that he attends while visiting my mom in Kissimmee that is free and I’m beyond comfortable with him going to. Because of his child from a prior relationship. Am I being selfish for wanting to do this.

Am I a bad stepmom?
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