In other words it means I don't want to go out with you, but I still want to be friends. Often used to let someone down gently.
I don't think we ought to date, I don't want to ruin our friendship
'Would you go out with me?'
'I would, but, I really don't want to ruin our friendship..'
Zip it up. I won't fuck you.
Can I just stick it in a little? I'm so horny!
I'd let you, but I don't want to ruin our friendship.
What a girl says when you have been friends with her for a while, but does not want to take the next step and become your girlfriend. Basically those works are a huge kick in the balls.
Girl: "We could start going out, but I don't want to ruin our friendship."
Guy: "OK, I understand completely."
Guy's thoughts: "GOD DAMNIT!!!!"
Polite refusal to engage in sexual activity with a member of the opposite (hell, this is the new millenium, or the SAME) sex.
Amanda turned down Melissa's proposition for a dirty weekend, saying "I don't want to ruin our friendship." Then she deleted Melissa from her Outlook contacts, her cell phone SIM chip and changed her phone number.
(1) What you say to a friend (female/male) when you don't wanna hook up.
(2) What you say to a friend(female/male) when you do wanna hook up but dont wanna to seem so eager, when in all reality you are.
(1) "I've always liked you, but I don't want to ruin our friendship"
Phrase used in polite company. Literal translation is "There's no fricking way I am going to have sex with your fat ugly ass." Used in conjunction with the horrendous phrases "You're a nice guy but..." and "It's not you, it's me."
While I appreciate that you've actually taken a bath for the first time since 1983, I just...don't want to ruin our friendship...