Ex angry with me during a mutual breakup 2 days ago and now looks really sad. Why?

On a call with my SO, I told him in a very gentle manner that he hurt my feelings with the way he talked to me the other night and it made me cry (To see the conversation that we had the other night, please click on the images attached). He was actually being super aggressive but I did not tell him that. Told him that I wanted to be emotionally open with him and that I would like to work things out together. He hates confrontation. Instead of communicating his feelings and working things out, he lashed out saying the following:

• I got a glimpse of the future when you brought this up today, and if we got married I would have regretted it and it would have been my fault because I let it happen

• You say things kindly but you're a very mean person for bringing this up

• You think you can control me like how your mom controls your dad (Note: My mom is emotionally and verbally abusive, but I am none of these things), but you can't do that to me

• It's your fault for bringing this up, and now I want to leave

• Let's cut all contact, and if I text you it's because I'm weak to you. If I reach out, tell me no

• Block me and I will do the same

Etc.

I didn't say much other than saying the following because I was overwhelmed by his reaction and was in tears:

• I feel the same way (about us not working)

• I prayed to God about this conversation before we hopped on the call. I was not sure what to do, but I think I've got my answer

• In our relationship, I always prayed to God how blessed and thankful I am to have known you, and now He wants to take away the blessing that I care about most. I'm okay with it (because it is His way)

We mutually ended it, I never blocked him, and he seemed so upset that he wanted to end the call so fast.

Saw him in passing at church today, but he didn't see me. He looked really sad and off. I've never seen him like that before.

After all that he said to me, why?