Most Helpful Guy
This is a rant not a question.
If you want my 2 cents, I'd say get over it. Why do you even care what he's doing now or who he's with. Let him live his life, you live yours. Why be bitter over events from four years ago, it's only going to give you stress.
Most Helpful Girl
This is something I have contemplated a lot! Would I be happy in a relationship that was essentially a lie? I think in the end, no. Even if you're completely oblivious to the fact that he's cheating, clearly he's not respecting you at all in this way, and therefore this lack of disrespect would probably come out in other ways too.
You also have to keep in mind STDs.. What is he bringing home? What if you ended up with herpes or HIV or something that you can't get rid of!
Ignorence is bliss, that is true, but could you live knowing that everyone else knows your husband is cheating on you and talking about it behind your back? Could you live knowing you don't satisfy someone enough for them to stay faithful?
No! I don't think you should have settled. You made the right choice leaving him, you're just feeling lonely right now and that's making you question this.
Once you meet the right guy, you'll never look back, and be sooo happy you didn't settle! :) Goodluck!