(this is in order of what stresses me out the most to what stresses me out the least about having a relationship)

• gender roles (what should I do and what do I expect the other person to do?)
• sex (sin? getting pregnant? STDs? regular diseases?)
• falling out of love/ending the relationship (what's the point of having a relationship if it's not forver? I'd rather feel nothing than get hurt)
• it won't be like in the movies/books/tv shows (life doesn't have a soundtrack and people don't magically know what pleases you unless you say it [unless they know you very well but that's something else])
• death (loving the other person so much just to deal with the fact that we won't be together forever)
• expectations (kids? future? marriage? what do people expect?)
• losing personal space
• that it will get boring