I can also see how it might feel he was meaning you shouldn't go or that he was frustrated with you, but i think it would pay to check this out with him - either by email or phone or when you see him next.
I also think it was a his way of trying to challenge you to break old habits / patterns - ie, you don't reach out, perhaps believing the other person doesn't want to hear from you; that you don't feel worthy enough to reach out. ... Here he is saying 'please do reach out, I want to know and I want to help'