Yes he knows and were both happy that the child is his. We had a 1 night thing a yr before and it was about 6 .7 weeks after my ex so were pretty sure. I told him from day one i new and we delt with it all together.theres no issues there
Well, not to gloss over the reason you started your thread, but I can't help but to address this:
"i have 2 children one of which im 99% is his."
If you're not 100% sure the child is his, then there is some chance it's not. Is HE aware of this? Or does he think 100% that this is his child with no questions? Does he know you were with another man (or men) around the same time?
If he is in the dark, it may explain a lot of the way you're feeling, as that's one heck of a thing to be dishonest about and keep to yourself.
If you've not told him that there's even a MINUTE chance that this child isn't his, you need to do that ASAP and get a DNA test. Not only would it be wrong to HIM, but also to the potential real father, and most importantly, to your child.
I'm sure the idea of confessing that is frightening, but you must find the strength to do so somehow. To NOT do so is just simply terrible and unacceptable, and I don't say that to be judgemental, just trying to hammer home that that is a VERY big deal.
I think, until you resolve that uncertainty, any other issue is not important at all, in my opinion. You've got MUCH bigger fish to fry right now.
Best of luck to you.