From your posts I'm not too sure if your DH knows of the affair or, if not, whether you are planning on telling him
BTW, did you have unprotected sex with the OM? STIs can be transmitted through unprotected oral sex as well as by piv. If there is a possibility of this then you should really get yourself tested.
I have no sympathy for people who have affairs - I've been cheated on before.
However, I do believe that cheating is a symptom of things not being right in your relationship - rather than the cause of it. I would guess that your wants and needs were not being really met in your marriage. I am not saying here that your husband is to blame - far from it - as it is quite likely that he also was not getting his wants and needs met from the relationship either.
You say that you will be having counselling and that will hopefully do a lot to increase communication between you and your DH about what each of you need from your relationship.
However, the big thing will be the affair. Will you tell him about it?
If you do come clean, then you’d better do so completely. I mean 100% truth, absolutely, no holds barred, no little omissions or “spinning” anything. Tell the truth about who, where, when, what happened, how long, etc. Don’t even think about leaving out past indiscretions. Don’t fool yourself that he doesn’t need to know all of that or that you’re “protecting him”.
Second, accept full responsibility. Do not even allow yourself to maybe think just a little bit of this is anyone’s fault but your own. You are an adult. No matter what your emotions are, you are in control of your actions.
No matter what the relationship with your husband was like, whether he “just didn’t appreciate you”, you aren’t getting as much sex as you’d like, you just aren’t so attracted to him any more, or you want to explore things that don’t interest him, the affair is completely your fault. It doesn’t matter how much effort the OM put into seducing or attracting you. You chose to cheat. It’s All Your Fault. Accept It.
If you’ve decided that you truly want to stay with your husband it’s time to talk to him.
You might want to consider doing this during one of your counselling sessions. Ask your husband to let you talk until you’ve finished, and tell him everything. When you’re done talking, it’s his turn to talk until he’s finished. Let him say anything he wants to say, ask questions, etc. Answer any questions he has fully and honestly.
He may want some space at this point, because he’ll need processing time. That’s normal. In fact, he may not want you in the home you share together. Be ready to stay elsewhere if he doesn’t want you anywhere near him or for him to want to leave the home temporarily.
If you arrived in one car for a counselling session where you are telling him this, consider ahead of time how you will get home or to your alternate destination if this is what he wants. If you can have an overnight bag ready without alarming him, do that.
Prepare yourself to accept his anger and resentment, to acknowledge his right to those feelings, and to support him in expressing them in a healthy way. Don’t assume that he’ll forgive you, or that he’ll be willing to do anything to work on salvaging your marriage. He might, in fact, walk out to call a divorce lawyer. He’s certainly within his rights to do so.
Your husband has several decisions to make now. The first is to determine whether or not he can trust you at all now. Is he able to forgive the harm you’ve done, and is your marriage even worth the work it’s going to take to salvage it? If he confides in them, it is highly likely that his friends and family will be telling him to dump you.
One caution: many people, when faced with the knowledge that their spouse has been unfaithful, will have a “revenge affair” of their own. It’s never healthy, but it is common.
If your husband decides to forgive you, there’s something you need to keep in mind: “forgiveness” does not mean, “I’m forgetting what happened and everything is like it used to be.” Expect periodic recurrences of any initial explosions of anger, shame, grief, and pain.
I hope this is helpful.