Ok, so I am not the biological mother of your son. Ok, so I did not give birth to him. But in loving his father I love him too for who he is, who he wants to be and who he will be. Pushing him out into the world does not make you a good mother. Being a good mother makes you a good mother. I am a good step mum. So butt out of my life. I don't infringe on yours and question you. If it's good enough for his dad it is good enough for me.