SatyaMom, I recommend that you start posting in the Divorce forum where you'll get a lot of good advice from people who have been in your situation and can help you navigate the process. An important thing to keep in mind is that probably the majority of people in that forum who filed did so while still deeply in love with their cheating spouse.
As someone who followed your threads, in which you describe being anxious and depressed despite your husband "doing everything right," I'm sorry to say that I'm not in the least bit surprised as that you're having another Dday. I've avoided commenting on your past threads because I didn't want to come off as a cynical and bitter divorcee trying to rain on your parade. But now that the cat's out of the bag...
The first reason I believed you were in false R is that it's likely he has been cheating on you for far longer than you know. A hooker habit doesn't come out of nowhere and then just go away because he stopped drinking and started working out more.
Second, it seemed like your husband wasn't working on himself so much as mastering a role-- like he knew exactly what to say and do in order to convincingly portray the "perfect remorseful husband." Although it seems contradictory, waywards that have actually faced consequences for their actions and are doing "the work" are far from perfect because changing one's behavior and making sacrifices doesn't come naturally to someone who has lived selfishly their entire lives. The process of self-transformation is messy and painful.
Third, and most importantly, I think that you were just ignoring your gut instincts this entire time. I'm glad you listened to your gut on this occasion rather than taking his word for it.
I think the biggest challenge you are going to face going forward is just accepting the fact that your WH was never the person that you thought he was and avoid falling for his bullshit again. He is a master manipulator and you need to limit any interactions you have with him. If you go to him seeking answers as to why he did what he did, how could he do this again, etc, all you're going to get are more lies and false promises.
They knew their dad had a mental health crisis and it affected our marriage. My son especially wasn’t buying it but I held fast. Now I need to tell him. I don’t know how much to share and we are close and he will be angry at me not telling him sooner :(
Don't be surprised if your son knows a lot more than you think he does. It's entirely possible that he might know about your husband's cheating in the past or simply isn't wearing the same rose-colored glasses when it comes to his father as you and your daughter.
You don't need to give your kids all the gory details; just stick to the bare bones facts. Your kids are adults; they don't need to you to facilitate or manage their relationship with their father. If their relationship is damaged with him, it will be as a result of your WH's actions, not your honesty about them.
[This message edited by BluerThanBlue at 7:19 PM, Tuesday, February 18th]
BW, 40s
Divorced WH in 2015; now happily remarried
I edit my comments a lot for spelling, grammar, typos, etc.