You should be delighted that he mentioned not for being happy with you over the 4k. I think it felt below expectations from you. To me, if he is, someone should cherish. You should just laugh it off and response, I did that out my last kobo. I know for the fact that you cherish him he or she will be someone that is dear to you. However, you should know how to say no at times. It is just individual differences. Some people will appreciate the little you give while some won't appreciate.