I suspect others on the site will have a different opinion/experience, but I'm not a fan of AR. The materials I've seen seem to have a bit of a bias against BS.
I have heard that many couples get a LOT out of Retrouvaille, which is focused on communition and not infidelity. And I would say that communication is super important if you are trying to R.
I don't know when your dday was, but my WH suggested similar weekend infidelity seminar things about 2-3 months after dday . I declined, mostly bc I was such a basket case I doubt I would have been able to absorb much of anything. Moreover, I was absolutely NOT ready to do anything that would have implied (and some of these programs don't imply, but pretty well outright say) that my WH's A was my "fault" in any way, shape, or form. Now, maybe it would have been a good thing for me to the extent that going to such a program may have motivated me to S much sooner.
IMHO, even saying things like: what in the M made the WS 'vulnerable' to an A is BS blaming. I was in the same M, so I had the same M-related "vulnerabilities", yet I remained faithful to my WH from day 1. To me, the question should be: what is it in YOU (the WS) that made YOU vulnerable to an A. Hint: it has NOTHING to do with your M or your BS.
Some BS seem to be Ok with the implication that they somehow contributed to the A. There are some theories about that, but it seems that BS who feel they contributed do so in order to have some sense of control over the WS - IOW if I change, then my WS won't do it again. I went that route with my WH's 1st A.... didn't work.
Similar issue from the societal view of blaming the BS for the WS' cheating - by doing so, folks who have not been subjected to an A can tell themselves that it won't happen to them bc they are good spouses. I believed that when an acquaintance learned of his WW's A... even tho at the time my WH was 7-8 years into his LTA PA.
ETA: I apologize for the t/j, but I'm glad you are still on the planet. My WH hung himself in month 9. I found him in our shed/garage. He literally died in my arms. The good news is that EMT were able to revive him, with what - so far - appears to be minimal cognitive brain damage. This was a real miracle in that about a 1000 things could have gone differently and he would have been too far gone by the time I found him. The bad news is I now have a second PTSD dx from it - which I'd have even if EMT had not been able to bring him back to life. The flashbacks and related PTSD symptoms are extremely difficult for me, even though I have an IC that deals solely with the trauma aspects (I also have an IC for infidelity/ everything else).
[This message edited by gmc94 at 2:37 PM, August 9th, 2019 (Friday)]