I can hear that you sound a little down, but it sounds a lot better that you ever sounded before you left!
Don't worry about whether H sees you leaving as a consequence, or whether he has regrets, or anything like that. For one thing, it's mind-reading, and for another it really doesn't matter. You left because it is what you had to do to take care of yourself. Whether he held a bash or a pity party doesn't matter. How it made him feel should not have anything to do with how you feel.
It will take a while to find the friends that you can talk to about all of this. This is a good place to start, at least you can get things off your chest here. Drop some notes in the alt., send some emails, you'll find the right people to support you. And as time goes on, you'll find them around you, as well.
I am glad your D is spending time with you, I thought that would happen! It sounds like your bunny and new pup are a blast, too! Keep moving forward, a day at a time, and things will keep getting better!
