This is just my opinion, so take it for what it is worth (or not):
A lot of the vets here are smart people and their advice is usually spot on. I can understand why some of the advice feels like a one size fits all approach - but it is not for reasons that you may think.
In most scenarios, there are genuine reasons for a WAS to leave and most of the advice will only work after you identify and fix the problems that led to the WAS leaving. For example, no amount of GAL is going to re-attract your W till she sees changes in you. On the contrary, the separation will reinforce her decision as long as she continues to see offending behaviors. Reading through your thread, it is easy to identify many reasons that could have possibly led to the deterioration of your relationship. Other posters have called out some specific flaws and you had mentioned your W and MC had communicated reasons to you too, which you categorized as them ‘ganging up on you’. As long as you are defensive, your chances of R are low. Many posters here are people that are otherwise successful despite any relationship failures, so having a superiority complex will not help your cause.
The measure of success here is not whether your W returns to you because that is no longer in your control, whether you admit it or not. Your true measure of success is whether you learn and grow from this experience to become a better person that can have better relationships going forward, romantic or otherwise.
