Resentful & Angry

I just had a baby 2 months ago and I been dealing with a lot but I have noticed that I have become angry 😠 resentful I’m not affectionate anymore to my husband. He hasn’t done anything to really cause it idk if it’s because I feel like I’m doing more than him with the newborn. We both work but I feel like he feel he “has to get his sleep”because he drive a hour for work he’s a jailer at jail and I’m in town a teacher dealing with 2year olds all day and then come home to my kids. I think he feel that my job is a piece of cake and his sleep is more important to mine maybe this is where my resentment is coming from..... Do you think that’s what it is!