The answer you seek is “It depends…” I personally hate hearing that answer. Here are some of the things that can affect how long you give your spouse.
1. Length of affair
2. Amount of love you have for your spouse
3. How your spouse treats you now: is WS flaunting the A, is WS honest, is WS concerned about you at all?
4. Children, how many and how old. The age can make a big difference. Probably the 81/2 year old already knows something is wrong between OW and Dad.
5. Your financial situation
6. Support from family and friends.
I suggest you find an MC who specializes in recovery from infidelity. I would also suggest that if possible you find an MC who promises to tell you if WH is continuing to wander, and one who endorses either a Plan B option or a Controlled Separation, a similar idea pioneered by Lee Raffel.
http://www.leeraffel.com/ This separation is a godsend for people really practicing Plan A with no results. It gives you a fallback plan, and something to keep you going until you need to make the move to Plan B.
Okay, how to deal with demands. Re-frame your demands into boundaries. “I won’t have unprotected sex with you until you have no contact with OW and have had tests for all the STDs.” I’m not RC, but I believe the Vatican said you can use condoms to prevent the spread of disease but not for birth control. Your priest should be able to clarify that. OR you could refuse sex, but that could drive H. back to OW.
As for going to confession… I’m an eclectic protestant so I believe confession is between God and me. Plus, God knows my heart so why do I need to tell Him? However, even if it’s between God, your husband and your priest, it doesn’t involve you. That would be a selfish demand in my book.
So, your boundary could be that you won’t attend mass with him or you won’t sit with him if he insists on violating the sacrament by not having confessed his sin. Only I wouldn’t say it quite like that. Maybe, “I feel strongly that it is a sin to take the sacrament without having confessed your sins. If you choose to do this, I’ll need to sit apart from you.” I would also be clear in your own heart if you belief confession of sin is necessary or do you just believe it’s necessary for him and the adultery. You’ve got a better leg to stand on if you and he normally go to confession regularly. Otherwise, he’ll perceive that your using your religion to embarrass him, control him or coerce him.
On the other hand, there’s nothing wrong with getting support from your priest and father confessor. Harley recommends telling friends, family and clergy about the affair. It’s not your secret to keep. And it’s about the only revenge you get. LOL.
Seriously think about what you and your husband can tell your 8 year old. Something needs to be said. Otherwise who knows what the children will make up.
I hope this helps.
My only other recommendation is to put an add in the paper for a wet nurse/nanny so you can have some sanity at work. I’m joking, I think. I’m not sure they even have wet nurses again, and La Leche doesn’t say you can have another woman breast feed your baby. I switched mine to formula early on and they’ve had no troubles. Big bouncing babies.