Caught up since I last posted. JellyB was much more eloquent than I was in my quick summary. Every bit of Jelly's and sandi's posts are accurate and founded on good logic.
Having been in a place similar to your's, I cannot stress enough how much you need to switch your focus to your children. Coincidentally, as the other two pointed out, those 5 wonderful children are your best source of 180s, not your wife at this time. She is lost, confused, and waffling non-stop. You have listed at least three different decisions she is making about the children in just as many days. Red flag.
Now, father to father. You chose to be a father to those children. I'm sorry if this comes across as a bit harsh, but you really need to get past the thought that your 180s would best be done without your children with you. Us fathers get such a bad rap in this world because of thoughts like this. You have 5 boys. Those 5 pairs of eyes are watching every single move you make right now. My son very quickly learned, once I got my act together, that I was the stable, strong one. He also would be the sweetest boy that would give me a random, loving hug when I thought I was hiding the pain. Teach them what it means to be a man by overcoming an adverse situation with strength and caring. Show them that real men don't give up even when it gets difficult. And, in the special case of your children, teach them that not all fathers give up and leave them.
M: 8.5 T:10 Me:37 W:34 S:6
Retrouvaille and W moves back- 7/31/15 Piecing - 7/4/15 to present