Yes she did and we had 2 children (I know without any doubt that they're mine). The story is a long and bitter one.
Listen, your marriage doesn't stand the remotest chance of recovery whilst OW and your husband have any contact at all. The A has to end and your husband has to get over it before you can even begin to rebuild.
Any counseling whilst an A is in progress is useless I'm afraid.
How long has this A been going on and when did you find out about it?
Who else knows other than you, H and that piece of filth he's seeing?
Me: 46 W: 46 T: 23 M: 20 DS12 DD11 DS5
W left: 01/28/08 Discovered OM: 02/26/08 W back for 9 days: 04/08 W returned 05/21/08 EA/PA - 01/08-07/09 W's MLC 2008-2014 (realised this much later)