What makes a feeling of annoyance towards another due to a certain action or gesture or lack thereof, valid? Eventhough deep in the recesses of your fully functioning brain, you would come up with logical and probably non-morbid explanations to certain types of situations or scenarios that you feel a certain bile-refluxing-face-heating-steam-puffing reflex which shouldn't really amount to such a reaction?

          It's called jealousy. And being illogical, irrational and taking a slightly demented point of view are perfectly acceptable character traits when you are under the cloud of the said feeling. Why do you ask am I writing such nonsense? I could give you a lot of misleading answers but don't you think you could figure out the obvious? If not, well, you probably haven't experienced the feeling. Which makes you an extraterrestrial being, visiting planet earth trying to study the daily habits of a human being.