Faith is defined in many ways. It can be belief and trust in and loyalty to God, belief in the traditional doctrines of a religion, firm belief in something for which there is no proof, or simple trust.
There are many ways in which faith develops. Conversion can be-- instantaneous, a slow thoughtful process, or something that has always seem to be a part of one's self. Sometimes even combinations of these events. Expounding and exploring one's personal beliefs is all a part of each individuals faith journey and it is good to see people having the courage and enthusiasm to explore, debate and discuss personal understandings.
You're right to say you were manipulated by this man's jerky behavior.