Haha, I feel you on the boyfriends warming up to bunnies thing. Similarly, my bf was a bit apathetic when I first got my bun, but now he’s in love too – so much that he’s taking on one of his own as well as soon as we find a good match!
As everyone else has mentioned, yes, bunnies are most active at dawn and dusk. My bun has changed her schedule to suit mine, but she was never a picky one anyways. (I wake up somewhere around 7 or 8 and, when I come out to see her, she is usually very visibly just waking up. But she springs right to life then and, except for a few naps during the day, usually keeps up journeying in and out of her cage intermittently until I put her in for bedtime).
My bun used to show her distaste for being caged when she didn’t want to be by thumping or dragging things amuck (though usually just her toys and whatnot – no poo and pee for me!). However, this did dissipate as she adjusted to my clock and as long as I made sure everything was in relative good order – clean litter, lots of hay, and a treat before i leave, of course!
As for a bunny who’s a bit more finicky, I’m not exactly sure. It might not just be his anger at your conflict in schedules, but it could be anything, from something big to something small (an annoyance at his location, something being out of order, etc.). All I can recommend is that you make sure he has plenty to do while you’re in bed and, as Scarlet_Rose suggested, make sure he knows it is bedtime (cover the cage with a blanket, turn off the lights, make a bedtime ritual of sorts) and he should hopefully warm up to your schedule and get the hint.