In Romeo and Juliet, why does Romeo love Rosaline?

At the
beginning of the play,is infatuated with
Rosaline, who is not romantically interested in him and
has taken a vow of
celibacy. Romeo is portrayed as an emotional, impulsive teenager who is

heartbroken at the fact that Rosaline is not in love with him. In act 1, scene 1, Romeo
reveals
that he is physically attracted to Rosaline by telling ,

She is too fair, too wise, wisely too fair, To
merit bliss by making me despair.
(1.1.212-213)

Romeo again comments on Rosaline's beauty
by telling Benvolio,
"Show me a mistress that is passing fair; What doth her beauty serve
but as a
note Where I may read who passed that passing fair?" (1.1.225-227). Other
than
being physically attracted to Rosaline, the...