Then if you think he likes you so much, just wait for him to contact you and stop defending how he feels. If he never calls you again, then his silence makes it loud and clear that your understanding of how much he likes you is obviously incorrect.
Many people are too afraid to just tell someone they don't want to see a person again. I think maybe he may be one of them.
If nothing else, the very fact that he didn't return your text makes him rude and uncaring. That alone is enough for you to not want to be with him anymore. If he was a nice person, he would have at least quickly text you that he was busy and would chat with you later on in the day. Don't you agree?
“The willingness to accept responsibility for one’s own life is the source from which self-respect springs.” ~Joan Didion