So frustrated!!!

My husband will not help me with our kids. We just had a baby last week and ever since we got home from the hospital he’s been so self involved. We got home on a Thursday and he spent the whole day Friday Saturday and Sunday in his garage. Then he went back to work Monday so this was his first week back at work. He leaves for work before our toddler is awake but I’m often already awake taking care of our newborn who has colic. I spend all day with a crying infant and a toddler who is having a lot of issues adjusting. I also do all the laundry and clean the house take our toddler to school on Wednesday and Fridays and running any errands that need ran. I’m exhausted by the end of the day but he refuses to get up with the baby when she wakes up through out the night so that’s also on me. I run on 2-4 hours of sleep daily. When he gets home from work he immediately goes to the bath room and spends an hour + in there. He poops then showers then he takes a bath every single night to “unwind from work” all the while I’m making dinner and taking care of a sassy toddler and hysterical newborn. I have told him I need help and his response is “I only spend an hour, hour and a half tops in the bathroom” ONLY?! He sees no issue with the fact he doesn’t help. He sees no issue with the inequality. When he finally gets out of the bathroom he eats dinner and watches tv in our room while I’m picking up dinner from the rest of us and bathing our toddler. I put our toddler to bed while holding our baby and the one night held her while I put our oldest to bed he was so frustrated with the crying he handed her to me immediately after I was done. I am so frustrated and filled with resentment. I’m suffering from postpartum depression and my mom tells me my feelings are normal and I’ll fall back in love but I really don’t think I will. He has totally emotionally abandoned me. I really feel like I could leave tonight and only cry over the fact that my girls will have a broken home.