Beth, I'm pretty new to this site but have been accidently DBing a little for many months. Full time DBing for nearly a month.
At the "early" stage you are at in your sitch, where everyone's emotions are at their boiling point, it is very hard to see how DBing can possible help. The one person that has zero chance of getting in your H's face and making him change is you. The only person you can control is Beth. You need to work on Beth. If you can't do it for your M then do it for the K. You need to provide a role-model for them. I know it's hard. Trust me it gets easier and will be worth it in the long run no matter what happens with your M.
Quote: When will he ever repent and truly feel bad for what he has done? When will he love me like he used to? Do I feel like DBing to get us there? Most days I do not. I'm not even sure I believe it would work.
Don't use the idea of him apologizing as a goal. If he ever does, you'll only feel good about it for a short time. My W has said "I'm sorry." many times but it's the WAS actions that really matter. It's just like when H told you that the EA is over. You felt good for a brief time but his actions are what you are basing your feeling on, right?
Hang in there. Try to stay calm. Patience is the hardest thing to have but it's the most important ingredient. You can do it! Have you gone through all of this crap and roller coaster ride to give up now?