Unconsummated relationship wishes

[Justin Bieber]

When somebody keeps flirting with or talking about someone, but never goes for it and meanwhile expects their friends to refrain from persuing the objects of their relationship wishes and when this does happens: getting angry and unreasonable to the point of being a pain in the ass.
Happens a lot around girls, who in certain cases can have numerous unconsummated relationship wishes, making life extremely hard for friends who keep losing track of whos [out of bounds] and who is not.
Situation to illustrate: Rachel [totally forgot] about the unconsummated relationship wish of her friend Angela and went on a date with Brad. Angela is now angry with Rachel and wont talk to her, even though she had a date with Kevin and has [no business] with Brad anyway.
Is also very common regarding ex-boyfriends.