Oh, and as far as this topic goes: it's sad, Trevor, that you so much despise your previous Church. The priest was not giving out "host" to people...willynilly, I have yet to see one of the official autocephalos orthodox churches coming out with a document saying Catholic mysteries are just that, bread and wine. Because they are not. Sure, individual priests can say what they want, but the Church does not say so. So even if there's 1% chance that you are in the presence of Our Lord, you should not despise Him. Nor say a prayer, be it the Jesus prayer, in the attempt to take your mind off what is happening on the Altar, or what the other people are praying.
As for the priest: he probably thought you're some sort of protestant. Or atheist. Or whatnot. Looking for answers. Or thinking about joining. Young people are valuable assets of the Church. If you had explained in simple words that you were Orthodox, most probably he'd have left it at that, or told you that if you have any questions, feel free to come and ask him. He wasn't trying to force you into catholicism.
And also: you probably know that Catholics do not re-baptize Orthodox. And that receiving H. Communion is not obligatory for anyone but the priest. You don't offend the whole community by not receiving Holy Communion, one may not receive for not being Catholic, being in a state of mortal sin, having eaten less than an hour before, being troubled spiritually, etc...receiving Holy Communion is about you and God, your relationship with Him, less so about you and other people around.