You say that you don’t want him back, yet you are expressing jealousy about this other woman. You can love someone,you can love them all you want – but it in no way means that it is always the best kind of love for you. You should do what is best for your child. I feel that living under the same roof, and still sleeping with him (seriously, you’re giving him the best of both worlds; no responsibility for him, but he still gets sex. Very bad for your self esteem.) isn’t the best thing for yourself or your child. I understand that people will stay together for their children. I understand the reasons they have for this. But, doesn’t it make for an unhappy situation? Children aren’t dumb; they can pick up on things and it can affect them. Maybe your solution is to live in the same city, and start new. It seems this man you’ve been with (and let’s face it, you still are) isn’t moving in the same direction as you. For things to work, and for it to be a happy situation, both people have to be moving in the same direction/be on the same page. Would you let a best friend treat you the way this man is? If the answer is no, then you know in your heart what is the best thing for yourself and your child. Go for your future goals (and your child’s), and surround yourself with what brings out the best in yourself – not the worst (example: jealousy and fear). Once you make your decision, you can reflect back on this moment and realize it was not so bad:)