I know not all Scandinavian people are the same but I've met a lot of Norwegians and Swedes and what they consider being "friendly" is to me often "too-much too soon" - they start being very friendly sometimes where I think we haven't known each other long enough. If all the priests you meet are non-Scandinavian consider that they have a different idea of things we don't actually even think about normally. If they aren't being explicitly rude it could just be that you are operating according to different ideas of how people are supposed to relate to one another. (Does that make any sense?)
That doesn't sound like what I've read elsewhere or the few times I've met Scandinavians. Unlike the American stereotype of swinging Sweden, I've found them very reserved/withdrawn.
I think many immigrants are louder and talk more then the Swedes and those immigrants who talk arabic may sound a bit agressive.
but with alcohol you will have loud and talkative Swedes!