Well, here is the definition of faith
http://en.wikipedia.org/wiki/Faith
Ignore him, he's being a tool. Unfortunately I know a lot of people like this (being in the ME) they tend to get offended when I tell them I don't believe in God. I've had people tell me my life is incomplete because I choose not to believe in something that obviously exists. I've asked them to prove it and I usually get the reply, you feel happier and more content
. I usually feel that way when I've eaten or had sex, and God has fuck all to do with that, unless he's called 'wife'.
I even got a verbal warning for telling one of my work colleagues I don't believe in something that can't be proven. Little did I know he was an ex-boxer and was tossing up between reporting me and punching my lights out. Luckily, he chose the former (cheers Asif
).