As far as I know this forum does not have a private message feature. Obviously it is up to you if you choose to post an update.
I stick around this forum because I learn something every day. There are people on here that inspire and motivate me each day. I know when I was in the absolute thick of my situation there were many, many kind souls who gave me unwavering support. I will be forever grateful (and just so you know, I didn't find this forum until the end of my situation). Having a marriage dissolve, dealing with my H's affair, my health struggles, near financial ruin and a 24 month legal battle was the most difficult and humbling experience of my life. To me, this site is not about feeding my ego. Not in the least.
Sometimes one has to look at the big picture before they can zero in on what to focus on first. You have made it abundantly clear your W talking to her friend is not something you like. As your thread progressed a few other "issues" were posted.
There is no quicker way to kill respect, love and attraction then resentment. And you did share that you felt your W resented you for giving her advice/opinions about how she handled the R with her daughter. Once resentment starts it is very easy to build and as the resentment builds the love/respect diminishes quickly. In my experience once resentment builds many other issues that were once tolerable become intolerable to the spouse who wants out. In addition to the resentment she might feel you mentioned your W is going through menopause. Your unemployment may also have something to do with her feelings. And really, it doesn't matter if you think she shouldn't feel that way. We don't know how she feels (unless she has told you and if that is the case please pardon me) but there are certainly many "red flags" that can be examined to help source her unhappiness in the M.
You have posted a few other things that caught my eye so to speak that offered further information as to what the root of the problem(s) are (or at least what they might be). However you said you don't want any further discussion aside from the friend issue unless you ask for it.