A MLCer and the alienator may look happy and fine in public early on, but:
1) the more time goes by, the less happy they will be
2) just because they look fine and happy in public it does not mean it is the same behind close doors.
I only saw Mr J and OW1 once, by chance, not that long after BD, they seemed a normal couple. They never lived together, only saw each other on weekends. They didn't last long in the open. Mr J and OW2 spend at least 10 years together. Aside from once, early 2018, also by chance, I never saw them in person. Early 2018 when I saw them, he was djing, she was outside the venue, talking with SIL. No one who didn't knew then would be able to say they were a couple.
I saw several photos of them over the years. The happy "in-love" couple gave place to a totally bored couple. At a point, there were no more photos of the two of them. No one can spend 10 years together and it always fun and cool.
The longer a MLCer and alienator spend together, the more it is going to look like any other relationship, arguments and bad times included.
Early on it is still a fantasy, unfatuation can last up to 36-48 months, regardless of the type of relationship.
The MLCer did not got involved with OW/OM because of the marriage or the LBS. They will most likely not break with the alienator because of the marriage/LBS. Mr J and OW1 broke because of their own issues. Mr J and OW2 separated at a point last year. It is unclear if they are, or aren't, back together.
I can tell you being the dj's girlfriend is boring. You either stay home, be out with your friends, or have to spend hours in the club or bar he is djing at. That was one of the reasons OW1 and Mr J broke. They only saw each other on weekend, he was always busy djing on weekends. OW2 had to endure 10 years of being the dj's girlfriend. She is a much better person than I am when it come to it. I endured a few months or Mr nightclub when he was still living home, not nice at all. I would never endure 10 years of that stuff.
On top of the djing, is having a man who comes home in the middle of the night, or in the morning, drunk and reeking of cigaratte smoke. It is having a man that pretty much every time you go on holidays he will have to go djing, or come back to dj, or goes clubbing, or spends hours in records shops. Thanks, but no thanks, been there (for a few months), done that, got the t-shirt.
Which begs the question, since Mr J was not willing to give up the djing, the real serious alienator, why did I not wanted to divorce and though it was a good idea to "safe" the marriage"? I was being stupid. And, of course, like all of us, in shock. I would had broke with him/divorce him if he had carried on the djing lifestyle even if he he hadn't left and there was no OW.
Who are Mr J's OWs. Both highly educated, one has a PhD the other a masters, both speeak 4/5 languages, cultered, one is a teacher (OW1) the other an agro research scientist (OW2). No visible issue with them, they look like normal women. They were both well like my Mr J's family, our friends that meet them and all his new friends. They were both early 30's by then, now in their 40's.
None of them is prettier or more interesting than I am. OW1 is one of the most boring, uninteresting people I know. OW2 is more interesting, and, as I said in another thread, if she was not OW2 I and her my get along very well.
OW1 knew he was married, she was part of our wide cultural circle, OW2 did not. OW1, by her own words to him, was dead jealous of me. Scared also. But their love was so great she broke all her values to be involved with him, and dare he not back off. He told her he too had to broke all his values to be with her.
OW2 come to the rescue of the broken hearted dj she had started talk to when he and OW1, that for OW2 was his girlfriend, broke. She is the knitness in shining armour. She got in his lawyer, choose the the fancy flat they live in, etc.
None of that excuses him. He was the married on. The one who was chatting women, first beyond my back, then beyond OW1's back. Nothing ugly, just how depressed/down he was, talks about his dj sets, art. It was all silly, teenager like.
If you want to have some idea of how absurd those talks can be, this is an old thread with Mr J's correspondence to OW1, and a little to OW2, The stuff to OW1 is mostly from before he left, to OW2 after he left, but some of it while OW1 was still in the picture.
https://mlcforum.theherosspouse.com/index.php?topic=1694.0 - The Love Correspondence Between a Husband and OW an Insight