You cannot really change anyone unless they want to change. You're dating a rude, crude boy who is immature, but he has a heart of gold and he is willing to prove to you that he really can be more mature and take on some responsibility. It is going to take some thick skin and hard love, but you really can go about changing and dating the Rude Boy type.
Breaking Dates And Being Late
A responsible man won't have to break your date with him last minute unless it is an emergency. He will not be late. The key to getting your Rude Boy to show up early is to let him see why it is so much trouble for him to be late. If he is consistently late to pick you up, yet you still go out with him, stop. Next time he arrives at your doorstep ten minutes late, call off your date entirely. You don't have time to waste waiting for him.
If he cancels your dates, and this happens often, chances are he does not have much of a desire to succeed in your relationship. Break up with him and mean it- no getting back together. There is no reason to try to make a relationship work if he is just not putting in the effort.
Getting Selfish In Bed
As a man, his main concern should be to make you feel pleasure. If he finishes too quickly, try to slow down your foreplay and keep him going for longer. Do not yell at him or make him feel sexually inadequate. Try wearing all of your clothes to bed and having him slowly take them off. Point him in the right direction by telling him what you like and buying new sex toys for him to use on you. He should get the hint.
Making Derogatory Jokes
There is nothing wrong with a crude joke every now and then, but if he degrades women or says something that is just too much, let him know. Do not make a big fuss about it, especially if you realize he was only trying to make you laugh. Paying too much attention to this mistake can just make it worse. Reward him when he is sweet to his mother or does something kind.
Being Rude Around His Friends
Guys like to joke around in crude ways and act like jerks. As long as they only do it around each other, it is nothing to be concerned about. This is one thing you cannot and should not try to change about your Rude Boy. Going out with his friends means getting his crude sense of humor out of his system so he can spend quality time with you.
If you really can't make it work by training and changing your Rude Boy, you might never be happy in your relationship. Do not try to force him into being the guy you want him to be. Accept him for who he is and teach him some manners. Otherwise, it might be better to just break up with him and get back into the dating scene.