Some people need a schedule, those of us who are up for adventures do not understand. By the same token, schedule people cannot grasp the idea of last minute happenings.
I am spur of the moment, while I appreciate a schedule I also love little surprises and last minute “Let’s go rent a cabin” or “Let’s go see the ‘Screaming Dashchunds’ concert!”.
Our son, on the other hand, likes to have the quarterly or annual schedule laid out. I used to drive him crazy when he was a kid “Hey, let’s drive 5 hours to see grandparents this weekend” when he was 11 he already was set in his ways like an old man.
Anyway, I am guessing that you are like my son, you feel comfort with a structured plan. Your husband is more like me, finds delight in impromptu outings.
You guys can work this out, it is just about understanding the other person better. One lets loose a bit more while the other gets a bit more structured.
Really, it is simply a matter of communication, ability to adapt and trust.
ETA Just read where there are trust issues. The advice given by the other posters is spot on.
Find a real life counselor, or someone who does telecounseling (that way you guys don’t have to be in the same room or same continent!)