Thanks to Tinder, my ex from 4 years ago got back in touch yesterday and we chatted all of last night until 3 in the morning. He didn't want a relationship last time as he was young and immature so we broke things off because I caught feelings. Anyway last night he was telling me that he wants to take things seriously this time and was being really sweet. We agreed to meet for a socially distanced date on Tuesday and I went to bed feeling excited about the prospect of seeing him again. We messaged constantly for about 5 hours and caught up on so much!
He then messaged me today early afternoon and asked how my day was going. I gave a pretty normal reply and then asked how his was going, but since then he hasn't replied! He normally replies straight away and I can't think of any reason for why he would be too busy tonight as he works during the day.
I'm completely confused as to why he's now decided to ghost me after giving me all of those promises yesterday. I sent him another message around half an hour ago asking if he'd got my other message, and still no reply.
Could anyone offer any insight into what's going on?