I think it all depends on where your heart is and where it directs you. I have found many "non-members" to be more inviting then "members". Just because they dont go to our church doesnt mean they dont pray to the same God or have no values. What an oppertunity this givs to be an example of the gosple principles we are asked to live by. After you have dated for a while then it is up to you to find (prayerfully I might add) whethere or not you should continue onto a serious relationship. Being guided by the Holly Ghost will prevent you from putting yourself into spiritual harm.