I didn't read your entire last post - it was pretty long, but I DID read about the Christians believing Buddhists are manifestations of the devil. (rolling eyes) They also believe I killed Jesus and won't be going to Heaven. So what? If anything, that sounds to me like a good reason to not want to be Christian.
Listen, the bottom line is that if you take your religion this seriously (and I'm not saying you shouldn't), you really have no business dating anyone who is outside your faith. It will NEVER work, and you are wasting their time. Non-Christians don't really care about whether or not you find hearing about other religious perspectives offensive, because in fact, so many of you guys are so vocal about expressing your own perspectives and seeking converts, which is considered insulting by people of other faiths.
I think you should find a Christian girlfriend.