What do you do if your boyfriend keeps asking you if he can buy you things and you keep telling him that you dont want him to get you anything?

If he wants to buy you something let him do it. Just be sure to let him know you like him for him, not what he can buy you. i use to not except gifts from men but then you realize that is stupid and if they offer you take it! Well it seems your boyfriend is just trying to treat youand by rejecting him he may be offended by you. He must respect you if he asks you first anyway, but if you really don't want anything, just say to him that you don't love him for the things he buys you, you love him for who he is