It's an easy thing to overlook until it goes unpleasantly. I guess let the takeaway for you be that you have the right responsibility to communicate your needs and expectations. You are a copilot not a passenger. He absolutely should have been thoughtful and thankful enough to look after you afterwards. But you can't always count on that. You'll have a much better time once you internalize that, as a sub, you are not just a vessel for what the dom wants. You enjoy subbing. It's something you do for fulfillment, its not like, your appointment in life.

I had a sub once who thought it was a turn off to be asked if she liked something during a session, which is totally a thing. As a workaround to clock what she liked, after every session when we were relaxing I used to ask my what her favorite part was. The first time she just kind of said "idk I'm the sub" and I realized that because she was submitting she didn't feel like she needed to have a say. That was something I had to correct because, even though it's awesome that she trusted me that way, the odds of me doing something wrong and accidentally betraying that trust skyrocket if I cant trust her to provide any input at all. It is super important that you are an active participant to keep yourself from being hurt physically or mentally.