Frustrated !!!

My baby is almost 6 months old! I am getting so frustrated because she keeps waking up almost every hour to two hours just to cry! I get her and I rock her back to sleep. I am tired!!! She use to sleep through the night and not wake up until 5Am or 7 am. My husband never hear her cry at night. He says that I have to wake him up. But I’m so sick of him. Because if I wake him up to take care of his child he starts complaining and once he actually gets up. I can do what I need to do by then. It’s quicker for me to do everything. I just want to go to a hotel and get a break! I’m loosing my mind because I’m so tired!