Should I confront this guy (Please see details)?

I was teaching Vacation Bible School all week at my church. One of the other counslers I worked with, we’ll call him Jeff, was talking to me today before camp started. We were managing check-in and were getting ready before parents started coming in. We were talking about something, I don’t remember what, and he mentioned that he thought that people should realize that marriage was between a man and a woman and anything else is sin. I am a Christian, but I also support gays and believe they have the right to marry whomever they want, a feeling shared by the majority of people in my church, including my pastor. He kinda offended me, yet he went on saying that being gay was a sin and anybody who supported it, supported sin and Christians who like gays are, in his mind, sinners and hypocrites. By saying this, he was basically calling me ,and the leaders of my church, hypocrites and sinners.
This whole conversation offended me and I don’t know whether I should say something to him next time we meet. What do you think.
Please don’t turn this into a political argument. I just want to know whether I should say something to him and what I should say.