help...

I have no help from my baby's dad he comes home in a bad mood gets mad because the baby crys, he doesn't sleep with me because the baby doesn't let him  sleep. During the day when I'm alone I can't do anything I can't even eat shower do laundry nothing because the baby wakes up and crys for everything, sometimes I'm just so stressed out I just let him cry. There's nothing wrong with him I just fed and changed him and he crys. I feel like a bad mom for letting him cry because my boyfriend makes it seem like I don't take care of him and all he does is cry.