He is very inlove with you. As long as you will not cheat on him and you treat him with respect, everything is good. You didnt pressure him into giving you such gifts so it is not your fault, in fact, you should feel pretty good since he loves you a lot. Also you dont earn as much as him so, how could you be able to give him better gifts if you are not as wealthy as him? try to give your appreciation to him in other ways, if you know what i mean...