TM Process & Controls Process Engineer interview questions

I had 1 interview with one of the owners (CEO) it went for almost 50 minutes. He told me he will get back to me in few days, and if he didn’t then I should feel free to contact him and ask for any updates/feedback. He never contacted me, I reached out to him and he never replied. I am ok with being rejected I just wish they rejected me professionally ( at least out of respect, as the interview was very long ).