Am I reading this right? did he arrange to meet up with a friend whilst you were there? if so how inconsiderate of him, I would definitely have finished the relationship there and then. Surely you met up to be together and to get to know each other not for him to see an old friend at the same time??
He sounds to me like a no no
Support and friendship for those whose lives have been affected by estrangement.
He should show respect for your wishes but you will only find this out by meeting up with him again.