I remember wanting to feel alive, attractive and powerful. In hindsight I was anything but these things! I was screaming inside and yet nobody heard.
In my experience the OM needs to go now. It will hurt like hell and I mean hurt like nothing else but IF you have any chance of stopping this that is how.
If you carry on you will loose your family and hurt them all irrevocably in the process. You may not fancy your DH but have some self respect and stop being used by some who couldn't care less about you. You will be one of many op. You will be replaced in weeks.
The decision is honestly yours and how you behave from now on is your responsibility and yours alone. I'm sorry to be harder but you need to wake up and smell the coffee op. This is not a game.
It's perfectly ok to admit you no longer fancy your DH even if he is a good man. What you are doing to him is horrible and if he finds out you will destroy him and your decision will be made for you. He will leave you. How do you feel about ripping your children's family apart, the fighting, lies and hurt can all be avoided. Just stop it. Make the decision that you go no contact and seek some counseling because you need it. Your self worth should not come from a seedy sexual relationship. It should come from the respect you have for you. You don't get that from others you build it from within yourself!
Continue and you will destroy your DH. You will destroy your children and you will destroy yourself. This is so much more than just an affair op. It's your dignity, respect and future everything you are gambling with. Every time you speak to the OM you risk losing everything.
Imagine having to look your DH and DC in the eyes and admitting to what you've done. Seeing the hurt, hate and devastation in their eyes and tears all caused by you wanting to feel good. Then you'd be going back to a cold, empty, rented flat on your own. You don't go back from something like this, you can only go forward.
Now try and justify what your doing. It shouldn't be as easy as it was when you first posted! Because the reality of it all crumbling down infront of you is not attractive or sexy neither does it make you feel alive. It kills you to your very core.
Wake up OP and stop being used and abused by this OM at the future detriment of your husband and babies.