There's always a time to get comfortable in a relationship, and when that time comes it becomes quite easy to forget some of the things you used to do for your partner that showed common courtesy.
He may not take it to heart because he loves you or sometimes doesn't realise you are being rude to him even though you have no idea that you are.
Julia Austin of Madame Noire lists 5 times you may have been rude to your boyfriend without knowing it.