Good day Slowly, It sounds like some more baby steps were taken of the weekend that made some progress on achieving your goals.
19 days, eh? ... fresh out of the starting gate and still feeling out what kind of trip is this going to be and that goes for H too ... so H's mood swings (like yours) are par for the course, but don't take them personally. There will be times where he is dealing with his emotions that get stirred up in the aftermath of having an A. Best thing is exactly what you did this weekend ... when he seems indifferent to your company, give him space to deal with it on his own and focus on doing something for yourself. Nothing productive ever comes from worrying about what is driving their moods and even drains your energy that be spent better on building your PMA. Around here that called "crazymaking". Better to leave it as ... "he is going an emotional time now" and understanding that means he is having to deal with some painful stuff so you can approach his moods with more compassion and less anxiety.
Glad to hear that doing the research on the vaction together worked out. I think this tact can serve you well with other issue where his involvement in the solutions as to build more a connection between you while going about your daily lives.
It would be a good time to review again the chapter on asking for what you want in DR, to start implementing some the techniques mentioned there to help when it comes to consideration and respect.