Do what is best for your boys, to me that is a father being very involved with them and as much time as possible. Don't you think this way, I do not know any DB technique that says that you should give up time with your boys to try to apease her or a 180 or whatever. Do what you think is the best for the boys, not her decision, your decision, if you all don;t agree that is what lawyers, judges and mediators are for.
Now settle your ass down, know that DB'ing is not just to get your family back but it is to get you back into life and be the best man you can be. These things will get you through this, your wife may have nothing to do with you during all of this, but it is not about her, this is about you, and so when you quit crying and realize this, the easier this will become. And no, it is not a breeze to go through this, but it gets better with time as long as you stick to these techniques.
Do this stuff for yourself, not for her, if she comes back it is just a waste product of the chemical equation of dbing, kinda like Oxygen is with photosynthesis>