Ghost me before the first date?

I met this guy through bumble and he asked for my number and all that. I was talking to him everyday for 3 weeks & everything was going really well. He was patient and kind with me. I wasn’t talking to anyone else and he wasn’t either. Last week he got a bit upset with me not texting him all day and about how I didn’t want to meet him because of my anxiety. So I told him we could meet after my midterm. So a week later we are all excited and we are talking the night before and before we went to bed I asked him what time he wants to meet. He said he wasn’t sure and would let me know in the morning because he was going to sleep in due to the crazy hours from work (he works for the space industry). Anyway next day super excited and texted him. No response, No calls. Nothing. I do not know what happened to him. It’s been 2 days since I’ve heard from him. I feel totally blinded sided and I don’t know what I did wrong. Did I do something? I tried reaching out & expressing how I felt hurt by waiting for him but he still hasn’t responded. Bearing in mind I’ve been single for 3 years and I’ve found myself and so i felt ready to date again. Maybe I’m acting crazy cause my last relationship I got flaked on a lot with no explanation so might be why I’m not reacting well to this. Any advice