1) Is "I don't want to ruin the friendship" ever a valid reason for not dating someone, or is it just a line we feed ourselves when we aren't actually THAT attracted to someone?
2) Let's say you have a good, no-commitment-required thing going with someone. Let's say you also get a little jealous even when you know it's not reasonable. Is being able to say "Back off, bitch, he's mine" to other girls ever a valid reason to start an actual relationship with someone, or is that petty?
Okay, so the second question is mostly tongue-in-cheek, but I want some actual debate on the first.