Have you ever thought that maybe your STBX just want to be with you and other woman at the same time. The flea(ex) did that he asked for a divorce, he was living with big foot(ow) and would come and sleep with me. The only thing you can do is ask to move or you move. Once your kids start visitation with him, you will get "ME" time. I know it sound self fish but sometimes we do need some time alone. About running away, it will never work, you are a mother and once you are away from your kids, you will want to come back to them, believe me I have been there. My advice is to move or tell him to move. That will be your peace of mind. Also don't sleep with him anymore, if you really wanted the divorce cut all ties with him and first is to stop sleeping with him. Take care and keep us posted.
Just thought I would update everyone on my situation. Yesterday was my 11th anniversary with the STBX. Since I knew I would not be getting anything, I went out and bought me a ring. Looks like the new princess' ring. He did wish me a happy anniversary. I told him also and stated it will be the last one. I think that shocked him. I am wanting to move on and being under the same roof is not helping!!