I'm pretty sure people absolutely do get divorced because they disagree about how to handle several trivial things.
Those can be insidious. To the one annoyed by the status quo, it can feel like the other person doesn't care about them. To the other, it can feel like their partner's trying to micro-manage a bunch of little things that barely even matter, and that they're "losing" because they find fewer of their partner's habits irritating enough to make a stink over.
Those can be insidious. To the one annoyed by the status quo, it can feel like the other person doesn't care about them. To the other, it can feel like their partner's trying to micro-manage a bunch of little things that barely even matter, and that they're "losing" because they find fewer of their partner's habits irritating enough to make a stink over.