I'm sorry you have to leave the company you started.

In all parts of our lives, we may feel threatened or anxious and so we do things to take control or push others away. The fact that he couldn't share the stage with you shows more of him than it does you.

You both hopefully learned some things, but the point of the matter is to not take this stuff personally - it was meant to be this way. Learn from the past, but don't dwell on it. We all have a future ahead of us.