Depends on how accepting they'd be of the fact I'm an atheist and how much time they spend on their beliefs eg. church visits every Sunday. I'm a bit anti when it comes to religion (not to confuse with belief in any deity!) so if they put their visits in the church/mosque/filler over our relationship that's definitely a deal breaker.
Nope, i wouldn't mesh well with someone if they believed in god. The requirement for belief is blind faith, i don't think anything should be accepted blindly without evidence so we'd always be fighting.
Probably not. He'd have to be REALLY special for me to even consider it. Then again, I don't think any religious person would wanna date me anyways, considering I have a tendency to make fun of religion related stuff.