It is not unusual for someone to be mad at God because it appears as though He is not answering their prayers. Usually this means that God is not following our directions properly. “If He loved me, He would do as I request because - well - it’s really what I want.”
And it is interesting to ponder if God thinks the same thing. “I’ve told them exactly what I want. Why don’t they listen?” But the difference is that God doesn’t get mad and He will be there tomorrow listening just as intently as He did the day before and hoping we will listen just as attentively.