Rosaline, from the Latin rosa linda "lovely rose".
"Here's much to do with hate, but more with love.
Why, then, O brawling love! O loving hate! O any thing, of nothing first create! O heavy lightness! serious vanity! Mis-shapen chaos of well-seeming forms! Feather of lead, bright smoke, cold fire, sick health! Still-waking sleep, that is not what it is! This love feel I, that feel no love in this.