The friendship tends to be one-sided. You see them as a friend, a person whose good qualities you appreciate, one whom you enjoy associating with. They see you as a person with potential--if only you'd go to their meetings and KNOW THE "TRUTH". Until you do, they're advised to not get too attached, because Armageddon is coming Really Soon Now, and unless you're IN THE ARK when that happens, you're going to be BIRD FOOD.
A romantic friendship is probably trouble as in TROUBLE.
Yes, sometimes very expensive trouble (as in divorce lawyers, alimony, etc.).