AWWWW this reminds me of the carrie bradshaw "+1" episode sex and the city....being single i DEF know what this is like....you def want to take someone who you'll have fun with. *im usually the +1 for my single male friends. LOL

Anyway I think #2 or #4 would be your best choices. i can understand your concern for your congregation thinking something (spanish is way different) BUT since this isnt YOUR congregation that will be there...i dont think there should be room for concern. just go and have fun with your "+1"