how can someone be your best friend one day and the next not?
In life, it is best to make decisions based on Facts.
I understand you are hurt and baffled by what has transpired, currently your emotions and feelings for this person are overpowering the reality of the situation.
You had to check into a motel as you feared for your safety, you state ,he was being verbally abusive, and feared it would escalate to a physical assault. You Also took an early flight home to get away from the unacceptable situation.
Thank goodness, you took the necessary step to keep yourself out of harms way. That is the ugly reality of this situation. I certainly do not want to come across as insensitive or cruel, but if you cut the emotional bond out of this equation, and focus on the facts of the situation, it might help you in healing. You dodged a bullet, he currently is unavailable to be in any type of healthy relationship. I would accept it as a moment in time, nothing more, nothing less, and go forward.
Sometimes these things happen, embrace the life lesson, and get back to living your life. It really doesn’t matter that he is not reaching out to you, what is it you want him to say or think he should say that would make this an acceptable situation.? It’s like waking up from a bad dream, and trying to fall back asleep, but your mind is trying to give the bad dream a happy ending.