…Even leaving aside how your partner seems to communicate poorly then blame you for any misinterpretations without taking any responsibility for their own bad communication…
Why does your partner need you to be in bed before they can go to sleep? That’s really weird.
Like, you know how I handle this when I’m in your partner’s position? I say “cool, sounds fun, please do the dishes when you get in, I’ll probably be asleep by then.” If I wake up a little when they get in, I roll over and cuddle. Done.
It sounds almost like there’s another reason they want you home, that they don’t trust you or something.
Okay, that’s fair.
“I didn’t know I was supposed to be home earlier” is kind of a weird sentence to hear an adult say, though. Like, that sounds like you don’t have a choice in the matter, like your partner gets to decide things unilaterally and you’re left hastily rushing to catch up.
Usually what I try to do is, when tempers aren’t high, work with my partner—outline the problem and work together, the two of us fighting against the problem. Explore the boundaries here, get creative—can you sleep in another room? Is it motion, is it sound, is it light that wake them up? Can you minimize that enough to learn how to not wake them up, or can they find earplugs/a sleep mask that help from their side?
It doesn’t sound like ADHD is the problem here, honestly. It sounds like your partner has you in kind of an unwinnable situation, and the best way to fix that is to renegotiate the rules of the game.