Naw, I think everybody's allowed to like what they like. Your friends are sticking their noses where they don't belong and aren't welcome. Tell them to mind their own business and the fact that they had this all planned out with photos and special terms says they've been gossiping about you behind your back and it hasn't been nice. I'd also say at least one of them is jealous because they like you but you have no interest in them, so maybe this was all concocted to get you to take a closer look at them.

Personally, I'd cut them all loose as "friends" because of the amount of gossiping and backstabbing this took to come up with their little "intervention". Find better friends.