Search Results: signs that hes after sex

So, I met this guy on Tinder. He was nice, charming and respectful. Same age as me. We cleared things about what we are looking for quite early. Neither of us was interested in hooking up, one night stands, etc. There were no red alarms, no weird signs, no bad gut feelings, nothing. Usually my gut always tells me when something is not right. He always stated how honesty is really important to him and asked me to be always direct and honest. We had a really good chemistry. Online and in real. Sex also happened and it was great. After sex nothing really changed - we chatted the same amount, he was still interested in me. I was surprised, because usually I am really cautious about letting someone getting under my skin. But even after sex he remained the same: nice, charming, respectful and looked still very interested in me. A week after sex he asked me out again. Evening before our date, he cancelled it. Saying there was some family emergency stuff. He apologized for cancelling and seemed honest about it. I wished him good luck with whatever is going on, we said goodbye and than he had to go to the family. After this I have never heard from him again. I never tried to contact him as well. I noticed he also deleted his Tinder account (but he was active on some other chat app we used to text).
Now it`s been almost 2 weeks without any word from him, without any contact. I also haven't tried to contact him in any way, because I believe if a person is really interested, he/she will try to contact you. But I haven't done anything in order to contact him as well, so I guess I`m living by double standards? I dont know.

Do you guys (and girls) think he just made an excuse to "run away" and I should text him to say "Hi, how are you? It seems like you disappeared?" Or I should just move on?