You shouldn't have to be trained to be a considerate, aware person by the time you're married.
We cover that elementary s*** when we're kids.
It's also gross that you'd rather just "hope you start improving on impulse", instead of being a man and a good lover and actively deciding whether it's fair of her to ask you to change, and if it is, deciding to change.
Also, talking about issues does not equal "endless conversations about trivialities".
1) There's a difference between talking and repetitive nagging.
2) It isn't that trivial if it's something that bugs your wife enough that she go out on a months long campaign of behavioral conditioning.