I can never get my boyfriend too have sex with me when I want too. He gets too whenever he wants to?

He sounds sexually controlling and you are letting yourself be manipulated. The only one who can change that is YOU.

he is rude try talking it too him its not good that you give him when he need it and he do not do the same

That means he only cum to you wenever he needs it, he doesn't care abt you needing it. Both partners shouldn't deny demselves with sex, maybe his only using you to satisfy himself wen it cums to sex. Wen nxt you are with him and you want it, try to start by holding his dick and climbing on him, kiss him etc....... He will surely submit to you, and give it wen you want it.