Help me to not crash out this morning 😖

For the past two and a half days I’ve been trying to keep it composed. I don’t know what crossed my mind but the other day I tried to send my Baby’s father (my ex) updates of the baby. He liked the messages and didn’t say anything so I asked him how he was doing. He was very short with me and said “I’m good how’re you?” and I said “I’m glad to hear that you’re doing well.”. Then immediately after that he asked me if I wanted him to bring the rest of my shoes I left at our old place. Not how is the baby doing. Not is there any updates on your appointments. Not is there anything new with the pregnancy and how you’ve been feeling. Then the next day I sent him pictures of my bump and he just ignored it completely. I can’t lie, I’m very infuriated cause the only thing on your mind is getting me back the rest of my belongings. I really want to explode and say “That’s why you’re not allowed in my delivery room when I give birth.” but I know that wouldn’t be the emotionally mature thing to do. I just have a hard time understanding how someone can willingly choose to be unavailable and nonchalant. He’s so manipulative. When it’s his feelings, he explodes and says everything is my fault. When I finally break down after having 0 reactions to anything he does at all, he’s responding to me with 4-5 word sentences every few hours trying to give me the silent treatment. And say it’s because I’m “insulting” him. Mind you I’ve never lost my temper with him but the whole relationship he lost his temper with me and I never said anything about it. I’m so upset right now. Any encouraging or supportive words would help.