Almost all wives suffer through a lot before calling it quits and leaving their marriage behind.
I salute you for making that big step, for whatever reasons... I am sure you thought it out well and it took a lot of courage. Still takes a lot of courage to this day, for sure.
Now, all beginnings require a lot of effort and pain -- as in all births require pain and effort. So this new life of yours will likewise give you some more pain, and require more effort from you. life really is unfair at times... so just let go of your estranged hubby and that kapalmukz kabit. Believe me, she is not as happy as she seems now. There is always the threat of being replaced by another kabit, or of his going back to you.. (BUT please do not hold our breathe for that. Leave in the past what does not work, ika nga.)
Do not also be puzzled how he can be so kampalmukz, kasi it is the kabit who is taking the lead on that. You know, it is in the nature of kabitz to really be all over the place. Kasi they gotta prove to the world that they have legitimacy ... na sila ang mahal. More than that, they have to quiet that little niggling voice they encounter before they sleep that what they are up to is indecent... so that advertising distracts them for awhile that is why they are kapalmukz.
God is not blind. Trust in Him. You will see, after some time, you will be grateful that your life is soo much better than what it was when you were in misery living with your husband.