I've been out of town again, and I was sorry (although not surprised) to learn of your sitch.
In the DR there are several circumstances listed that complicate dbing and your H has at least 2...an A and an MLC. (My H has 3...A, MLC, and depression) It can take a long time for them to work their way through that MLC, some books say 2-5 years YIPES!
Try and take a few steps back and remember some of your recent goals. They've prob been met haven't they? Think how far you've come since your D got married. Your R is improving one tiny baby step at a time as I see it.
I can totally sympathize as I am weary and running out of patience myself.
Cut yourself some slack, your H won't necc know if you fall of the db wagon for a day or two.
I am also wondering if your H mesed his own head up with his self imposed deadline of June for "deciding."
Things in my own sitch are improving and I am considering a move to Piecing.