You absolutely should not give him more information than you already have. It’s not his business. Bringing it up is only a way for him to keep your relationship off balance.
I frankly don’t understand why the two of you continue to be together. This doesn’t sound happy for either of you. He isn’t someone you can rely on to be fair or loving or faithful. He cheated on you before. He continues to “cheat” by staying in contact with the other women. He isn’t a father to the children he’s brought into the world. What’s the attraction?
You are only 31. You have lots of years ahead. I hope you will consider whether you really want to spend the rest of your life being questioned and devalued. Yes, you’ve invested 14 years in this guy but you were only a teen when this all started. You might want a different kind of man in your life now that you’re grown up. Really. There are men out there who have good character and who would love you and cherish you.
I wish you well.