Should I stay or should I go?

I have dated my boyfriend for 1 year and 4 months. Everything started out like a whirlwind and has continued with passion up until now. Don’t get me wrong we still feel butterflies at the sight of each other, and we can still talk 10 times a day when it is convenient for him. I guess that is what I am getting at. Lately more than ever it seems like everything has to be convenient for him whether I like it or not.I have put 100% into this relationship because I love him deeply,and I have believed everything he has ever told me about our future together andthe way he feels for me. But I have had to start questioning our relationship because of things that have proven to take place time and time again.Such as.. always making empty promises .Thing as simple as ,we will go out tonight,I will landscape your yard,I will pay you the money back tommorrow,I have you a birthday gift a christmas gift and a surprise gift. But guess what. I never saw any of them. I have often been stood up on dates ,and often had to put up with head games and phone games that have almost driven me crazy!! The best one yet is that he wanted me to have a boob job and he would pay. So he sends me to the plastic surgeon we set up dates for the process, and then within the next day or two he says that he has changed his mind and will not do it for me. BROKE MY HEART!! I am always forgiving him and giving other chances because he says he loves me soo much and I am the best he has ever had. I have reached my mental limit but dont want to be the one to call it off because i truely do love him with all my heart and I dont want to do something I will regret. He knows how all of this bothers me and still continues to become a little worse here lately.I have started withdrawing a little hoping to see a change but he does not seem to care. Is he playing hard to get or is he a player. Should I continue to withdraw, leaving him to wonder ,or just cut my losses now. Please!! Should I stay or should I go??