Treasur -
Dear god....what next? Setting up as a marriage therapist? Or a hair style advisor?

The sad thing is, I think the MLCer would actually believe that about himself as well in his current "warped state". If for no other reason I can see the MLCer doing just that because FIL believed he was the epitome of wise advice for marriage. It used to upset my Xh when FIL would give marital advice because it was never how maybe FIL took any blame for the downfall of his first and second marriages, it was always about how he did things right. Xh used to tell me later that my parents and grandparents were who he looked to for how to make marriages work, not FIL.
The kids and I laugh all the time whenever I make cornbread. FIL one time was sitting at the kitchen bar as I was baking and he stopped me and asked if I was putting sugar in the cornbread. I follow different recipes, and I can't really recall which one I was using that time because it was FIL's next comment that I clearly remember and the kids were sitting at the kitchen table during the interaction. FIL told me he could never "train" his second W to make it without sugar, because that is the way he liked it. The kids now recall my reaction and always laugh. I had said to FIL that maybe he should have realized his error in trying to "train" his W like a dog or perhaps learned how to make cornbread himself.
To this day, the kids will laugh and say how many times I walked away and bit my tongue when it came to FIL. It was usually because I just knew that was him and I wasn't going to ruin my day with his BS. But he really must have really gotten me aggravated by then. So, of course anytime I make cornbread now, the kids will change their voices and go into how they need to train me to make cornbread the way they like it. Funny now, not so funny back then.
And, I hate to say it, but Xh has in fact taken over parts of his F's personality and I don' think this is just a case of him becoming like his F in the sense that society likes to label it. This goes beyond that because it was such a radical change in him and counter to who he was. Xh was more like the BIL who I still speak to and they are very similar. BIL sees it too with the MLCer and it is as if Xh is trying to somehow work through some weird FOO issue regarding his F by becoming like him. It is so incredibly bizarre.
Last week, there were little bits of Xh that emerged that seemed like who he was before all of this. Luckily, it is not as confusing to me or at least didn't lasso me back in to somehow think he is making some miraculous turnaround. Maybe I am just too far away from it now and too much has happened, IDK, but I do know that it was like watching him suppress those parts of him and he would fall into the other persona that was more reminiscent of FIL.
I used to wonder when all of this MLC garbage really took hold what if Xh had gotten help? What if these people who Xh needed to work things out with hadn't died and things could have been mended? I sometimes might have a fleeting thought about that, but it is no longer obsessive like it was around BD. Now, those thoughts only occur when I encounter Xh and see how incredibly screwed up he still is. Otherwise, I really don't think about it much at all. For one, what if's that are based in what has already happened and can't be undone really don't help in any way that I can see. Now, I just watch as my Xh is on a mission to recreate his own relationship with his F through the kids. I can't change that either, but I can continue to try to be true to my own character. I can also use my MIL, before she got her act together and started to make amends, as an example of what not to do in this dynamic.
My sister mentioned that what would be my anniversary is coming up and if I am okay. I laughed and said TBH, I only realized that because there is an annual event that always coincided with our anniversary that Xh went to with my blessing. It was a once a year event that he used to attend with my F - an antique car show. I just saw a sign for it yesterday and how they are having it this year.
I think I shocked XH on our first anniversary when I told him to go and enjoy himself and we could make plans another night if need be to celebrate. If I recall though, I made a romantic dinner for Xh when he got home. It was never a case of dismissing our anniversary, because it was a special date at the time, but I have never felt the need to put pressure on things having to fit a specific day. He had acknowledged our anniversary for years as did I, we just realized that trying to for instance go out on a date night once we had kids might take a bit more navigating with babysitters and the like on the actual date.
Some people thought that was such an odd thing and I know it shocked some, but it worked for us for many years. Once FIL moved in the anniversaries came with little more than a card or my favorite phrase - not - "wow, you made it another year". And that was from Xh. He was well on his way into the crisis by then.
Strangely, he could go the other extreme and I still don't know entirely if it was genuine, guilt or some combination of things once the crisis crept in. Xh would take me out to dinner and wine and dine me. He would take me on a weekend away and it was like we were completely back on track. This was just as the EA was starting is my best estimate. Pre MLC Xh was notorious for buying me custom made, handmade pieces of jewelry on a whim or when we were on vacation he would find something he wanted me to have. I laughed not too long ago when I realized the last trip we took together he wanted to buy me a necklace at an art gallery. He had already bought one for me when we had gone to a wedding out of town that I simply said was pretty. I had no intention of buying it. He went out and brought it back for me. That was a pre MLC Xh move, so when we were on this other trip, I told him it was not necessary. Now I am sort of regretting it, only in that I know what it cost and I should have let him get it for me considering it would be later that I found the receipts for al of the hotels and dinners for OW.

But, I am not that person - I am not that materialistic.
Just now, I realized something and maybe this is coincidence, but IDK. MIL gave me a ring when I got married that was given to her for her 25th wedding anniversary from FIL. It would be a month later that he ran off with OW1 and started the divorce. She told me at the time that she wanted me to have it as a wedding gift. I always felt odd about it. The strange thing is, right before BD #1 and having been together about 25 years at that time, Xh had a custom made necklace designed by a jeweler he met through a client. Her work was in several art magazines and he took me to her studio as a surprise. X-BIL happened to be visiting and went with us and I thought we were just on a tour, when X-BIL informed me that Xh had been working on this for months. It was a lovely piece and I do still wear it and not because of some connection to Xh. It is just a beautiful piece of jewelry.
It would be a month later that BD#1 came.
Oh well - LOL. Doesn't change what happened. Certainly, doesn't change my feelings now. Just one of those "huh" moments.