You sound like a very level headed person, so you're ahead of the game already. You can keep your emotions in check when you need to. Focus.
Is there a logical reason as to why you and your daughter are leaving the family home?
There seems to be two camps in terms of intimacy with the WAS. One camp believes it keeps them hooked in, the other believes it is cake eating and a bad idea. I am of the latter opinion.
The purpose of DBing first and foremost is to invest in yourself so that you come out of this in the best shap you possibly can. Beyond that, you might save your marriage when your WAS misses the LBS and realizes that the marriage can be better. As long as the WAS gets the benefits of the relationship without any of the responsibilities / obligations, then the situation will likely not change.
If you have not already, you will be referred to Sandi's 32 rules, at the top of the newcomers index.
Did your H have any complaints about you or your marriage?
Stay cool and keep posting. You will find lots of support, wisdom and advice here. You will be fine if you decide to be and put your energies there.
me 45 H 46 T 5 M 2.5 BD Sept 6 2011 OW Sept 8 2011 Threw him out Sept 8 2011
