It is hard to have respect for a stupid person.....
If the believer comes from a group that thinks you should be saved by a mythical sky god from a mythical place of fire and burning so an unknown soul part of you will not be tormented forever, you are in for a really bad time. The problem is that you think you can get them away from this stupid belief and they think they can change your mind on their god.
Couldn't do it myself. Kind of a basic compatibility issue I think.
True most religions teach hatred of Atheists if not murder so only pacifist sects are likely trustworthy spouses to share an ethical deep commitment that is foreign to typical believers