Ask yourself, is this what I want for my daughters, do I want them to accept a husband who is abusing them via constant betrayals, destroying her self-esteem, risking her sexual health and making her think she should put up with this, because that is how marriages are, after all, you allowed her father to behave that way. Would you want your daughter to be hysterically bonding to her cheating w**ker h, desperate to compete with the ow?
Think of your son/s- do you want them to turn into cheating, untrustworthy whoremongers with no respect for woman because of the fact that their Father showed zero respect to their Mother and therefore they learn that women deserve no respect, they are there only to look after the kids or to take care of their sexual needs!
Please, teach your children that you deserve to be cherished and respected! Teach them that infidelity is cruel, wrong and abusive! Teach them that YOU and THEY deserve better! If there is no consequence to your disgusting husband's despicable behaviour then there is no reason for your husband to stay faithful! Already he has cheated on you with two separate women, and that's just the ones he has confessed about!
At the moment he has his cake and is eating it! He has you hysterically bonding with him supplying attention, sex and rewarding him for his behaviour! I imagine this ow has bailed on him, merely because of her spilling the beans, as she likely expected you to ditch him sending him running in-/between/to her legs/ arms. As that didn't happen and she likely incurred his wrath for blowing his cover, I imagine you may have a momentary hiatus where he is 'loyal' to you!
This will only last until another skirt catches his eye! He has proven incapable of fidelity! He has shown you exactly who he is- a cheating, disloyal scumbag, who likes to have his cake and eat it! He has no love or concern for you or your children! As the saying goes, when someone shows you who they really are- BELIEVE THEM!
You need to tell yourself that you are worth so much more than this! Tell yourself that you are strong, beautiful and capable! You deserve to be treated with respect, fidelity and the devotion that he promised you on your wedding day! There are good men out there, men who will love you and show you the love, loyalty and fidelity that you deserve! You deserve better than your scumbag husband, who has been playing russian roulette with both your sexual health and the security and emotional health of your children! He hasn't just betrayed you, he has betrayed your children too! You and your children deserve better!
If your husband truly loves you and wants to make your marriage work, he will do whatever you ask to prove himself worthy! So tell him to move out, then tell him he has to slowly earn your trust back, showing absolute transparency and dedicating himself to marriage counselling. Then take things very slowly and make him earn your trust again!