Is this verbal abuse?

I was living with my partner in another state, and days before I gave birth, my sister came to get me, and we drove back to my home state.

I left because I didn’t like the way my partner was treating me. He would go on rants, talking for hours at me, using a condescending tone and making sarcastic comments. He said things like “a deaf dog would understand,” “1+1=2,” and he threatened to disassociate from me and our son. He referred to our son as “that f***ing kid,” said “you took him because I was pissed off because you were being a hypocrite,” and “you play the victim and took my son, which then wound me up, and you’re still playing the victim.” He also said he would drag my family out by their hair if they visited and his family wasn’t allowed to (I never said they couldn’t visit; I expressed concern because they weren’t vaccinated and I was scared about our son getting sick). I didn’t feel like I had his support during my pregnancy, which made me scared to give birth away from my family. He didn’t want to come to ultrasounds or hospital appointments and attended only about three in total.

I called him when my waters broke to give him a chance to be present for the birth, but he was really angry and hung up on me. He called me a couple of hours later, and by then, I was in active labor and in a lot of pain. He started calling me names, including a derogatory term, and sent me a screenshot of how far he had to travel, texting, “Look how far I have to go just to see MY kid for a few days.”

Since I’ve left, we have been talking on the phone to try and work things out. He has said that he would like us to come back in the next two weeks. I still feel like he talks at me, as I listen to him for over two hours. He told me that the longer he misses out on his son’s life, the angrier he’s going to get. He also told me that one of his work friends said that if they were in his position, they would come down and kill my whole family.

I told him that I won’t consider coming back until I know things have changed. He said that the only way he can prove he’s changed is if we come back. He claimed that the only reason he is angry now is because we aren’t there, so if we come back, he will no longer be angry. He assured me that if we return, he will be happy and won’t speak badly to me anymore, and that coming back will be a win-win situation for everyone.