OK... This is a very delicate time... you can push him away from you if it isnt' handled well... its usually best to just shut yourself out... you won't be doing anything positive, but you will avoid doing anything negative as well...

Your statements earlier would just follow that.. you want nothing to do with him while he's in contact with her... and you take your children and you to safety.. he will get the hint and start to reconsider...

Right now there's a lot of pressure on him to get away from her from the OTHER end.. this is the BEST time to follow through on your end too.... so he sees little alternative...

Maybe you can leave him a note telling him NOT to contact you until he's gotten away from her... so he can see this is a permanent position...

Right NOW he thinks its just your MOOD and you may feel differently later on... you need to show him this is a permanent position that you are NOT backing away from...

He's gonig to try to argue or charm his way into you being ok with him contacting her...