Welcome though I'm sorry you find yourself here. Your sitch sounds similar to mine in some ways so feel free to check out my thread. I thought my sitch was unique too and that I needed to modify DBing to fit it. Nope. The rules don't change and in my thread you'll see a few people hit me over the head with that fact. Learn from my mistakes. Hang in there. Breathe. We're here for you.
I'm not loving the fact that your h is handing out ILYs and kisses and stuff but he's saying he's not willing to work on the marriage. It's mixed signaling to me BUT you can only work on you right now. Do that. It's worth it.