simultaneous and contradictory feelings toward the same object that can lead to psychological "splitting", in which a subject seperates irreconcilable parts of his/her personality.
someone might think you feel elated when you justfeel ambivalence (ambivalent)
The phenomenon to say one has "an eclectic taste in music"--meaning they like "all" music--when in actuality they like no music.
John: I like to think I have an eclectic taste in music.
Jane: But you can't name any albums that have come out in the last year?
John: Yeah, what's your point?
Jane: You like no music--you have eclectic ambivalence.