Whats going on

Is postpartum anger a thing? Im not angry with my baby, or myself, or my boyfriend. But i have this huge hatred for my boyfriends moms husband. I cant stand him, i cant stand when he holds my baby. I cant stand the way he talks or who he is. His breathing annoys the hell out of me. And i didnt realize this until i took a nap earlier and i had a dream i stabbed him. I woke up with this deep hatred for the guy and i dont know what it is. In his past, he was a drug addict. He is the reason my boyfriend went to jail last year.

But he is also the reason why i have a lot of the things i have for the baby. My mother in law doesnt work, and whatever she bought the baby, came from his paycheck. I dont even refer to him as my sons grandfather. In fact i get this boiling rage whenever my mother in law calls him that. Am i losing it? I cant stand the man with every ounce of my being, but i cant say a damn thing because of everything they have done for my son.

My mother in law thinks my baby loves him so much, how he smiles whenever he sees the man. But my baby will be 3 weeks old tomorrow. I dont think his smiling is emotion, just reflex?

What is going on with this deep hatred i feel towards this guy? Will i learn to get over it? Ah