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When a guy has an unhealthy obsession with a girl, particularly one who does not love him back, but that obsession disappears the moment he sees another pretty girl and becomes obsessed with her instead.

Named after Romeo from Shakespeare's Romeo and Juliet, because Romeo was in love with a girl named Rosaline, but forgot all about her the moment he saw Juliet.
Jason is obsessed with a new girl every few weeks. He has such a Romeo complex.
by Anachronism JN April 12, 2011
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2
Being in love with the idea of being in love, which describes people who seem to swing from 'vine to vine in the jungle of love' and are always in a relationship even when their choice in partner is clearly not right for them.
"He rebounded and already has a new girlfriend who is totally wrong for him as usual; the guy obviously has a Romeo complex and is just in love with the idea of being in love."
by Northern Guy November 22, 2012
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3
When a boy has an ulhealty obsession for someone he knows he can't be with or who does not love him back. Taken from the book Romeo and Juliet due tot eh rivalries between the two families.
I like her but her parents won't let me date her and she doesn't even like me.. i think i may have Romeo complex
by Minnaofthefloatinggardens August 29, 2012
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