Christian Marriage Prayer Request

My Christian marriage prayer request: I need prayer for strength, understanding,and the rest I am just not sure of. Dec of 07 My husband had an mutually agreed one time affair. After avoiding this lady, because he was unhappy about what he did and told her he did not want to have anything to do with her, she began a hunt of sorts for him. On his jobs, at church, our house, etc.. She was pregnant. She had a bad reputation he later found out about. He told her you know I have a family and can't have it. She said she wasnt keeping it. He secretly gave her 150.00. She didn't have it. I found out about all this later about this whole thing. I was crushed,but the funny thing was I was not innocent. For th e1st time in our relationship I was not innocent. Guilt set in. I'd been a stay at home mom for 8 years and decided to go get a job one day -to help my hard working husband out. Then I had a ongoing fling with a coworker. I eluded this to my husband after his situation came to light, but never gave the details. He knows. He said it and I never gave an answer. I was crushed, he was bothered, because his came to haunt him and with life altering effects. We went through the word battles and such, but because of our family and complex situations (We have an 7 year old-used to be his only girl, and 10 year old boy together,he has a 20 yr old and 17 year old sons, and we have a 15 year old God daughter, and are the central foundation to our family, I homeschool and hold leadership positions in church, as well as we have a work contract with the church)we decided (well I) to stay together. We talked about giving up parental rights, whether the kids will know, and the such. We came to point that we would just let everything go through court after he found out for sure or not. Skipping ahead, the test came last week...its his. Unbeknown to me, although he did mention it, he went to her house Saturday asked what she needed him to buy and so forth, came home with all these pictures of this little girl that NEVER should have been and who replaces my baby girl. It turned my stomache. He made our little boy almost miss his basketball game and left me crying and upset all day. We talked, but in his heart he feels he has to do the right thing. In my heart I feel that my kids and I should not have to play 2nd fiddle to anyone. Seriously, I accepeted what happened b4 me. Divorce is not really on the table 4 me. I want him to pay and stay away. My kids know nothing, they already have issues and my little girl and husband are so alike they had to relearn to enjoy each other. This is so much for me. I love my husband and kids dearly, he een works longer now, because he know he has to maintain our life and take care of this on the side. I hate this and honestly, just honestly from my heart.. the day that child was conceived. I feel like I don't have to accept this. I know God's word, I know, but right now I am just floating through. And to come into contact with me, you wouldn't know it...but God does. Please, please, pray for direction...wow I didn't know that when I started typing...direction. And that I will just continue to trust God. Thanks for listening.