I just don't understand...

I'd been talking to this guy for two weeks. He seemed like a stand-up guy. He called me almost every morning and we would talk for a few hours, he called me sweetheart and Angel because I take care of my mom (she has health problems.) We finally got to meet but not under the best circumstances. My mom had a bad seizure and had to be admitted to the ER. I didn't want to involve him so I tried being very vague, however he called me three times before I answered and he told me he didn't want me to be alone. He came over and held me, spoke sweetly to me, and made me feel better. He then booked an Airbnb for us because he wanted me to relax, so we were set to leave a few days later. He even went and got me Powerade and a vape juice that I like. So he came and picked me up, took me to this reallyy nice hot springs that felt amazing, he massaged me, and again nothing but sweet. When we got back to his place, he held me tight and I was able to fall asleep peacefully for the first time in years. When I woke up he was going to the gym then we were going to head to the Airbnb. Next thing I know I'm getting a call that he had to leave the gym because one of his daughters had an accident at school. He came back shaking and looking terrified. I held him and told him everything was going to be fine. The ride home was mostly silent. It was early but I made sure to tell him I wasn't upset at all about the Airbnb, I even offered to pay my half but he wouldn't take it. That night is when everything started to change. His texts got shorter, the vibe was off. I even asked about his daughter, and he told me she was okay but she had gotten a concussion. Then he messaged me he got sick. I of course sent him positive messages and told him how much I missed him and to get better soon. Then I wasn't getting responses at all. It wasn't until he posted to his Snapchat of him at the gym did I got a little upset. I asked him why he would lie or ignore me. He would always tell me if he was going to the gym. No response. I asked him what I did wrong. No response. I asked how he could switch up so fast and hurt me after he said he wouldn't do that because he has daughters and he wouldn't want them to be treated that way. No response. Then I found out he blocked me... Zero explanation... I am so confused and hurt. What did I do wrong? I initiated conversations, we were planning trips and planned on being adventure buddies. I just don't understand why he couldn't just communicate