You have mentioned a couple of times how needy you are. IMHO you must stop showing any signs of this while the R is on the rocks. When men appear "needy", it can cause him to be seen as weak. I believe it's the nature of women to be drawn to those men who show strength. Not so much physical (although that sure doesn't hurt), but strong in other ways.
When the M is in trouble, you must be careful that you do not act or talk in ways to show you to be needy. Frankly, it can be a big turn off! I believe that's the case with either gender, but if your W sees you as weak, then she loses respect. Respect for the H is major for the W.
Needing to hear your W tell you xx times a day that she loves you, or needing to know every thought she's having, every move she's made throughout the day, calling throughout the day when you aren't by her side, needing to touch xx amount of times per day.......are some examples. That's why it's so important to pull back, because you already feel panic and your needy ways will surface more than usual if you don't work to stop it.
You can feel your W detaching from you. I suggest that you get a life that does not include her (nor her relatives). Working together every day is not a good thing right now. I don't know many couples who can be together around the clock all the time!
She told you she feels smothered. Take that statement as serious as a heart attack!!
Oh, and speaking on her respect, no woman......NO WOMAN respects a lazy man!! It is nothing to laugh about. Do whatever it takes to prevent the appearance of laziness.
It is not about what you feel should work in your M. It is about doing the work that gets the right results. Do what works!