There is nothing wrong with this lady not wanting to rear someone else's kids. It's not her responsibility or choice to be a parent. Even if she chooses to stay in the relationship with the father, the kids still won't be her responsibility. But they would be part of her daily life and having kids in the house definitely changes the dynamics of things. She is not harming the kids in any way and certainly not being selfish. I think she's pretty smart knowing what she wants rather than just taking whatever comes along.