nice?

is there a possibility of being too nice?
well i was just being myself but err
now he just keeps talking to me T_T
and it'll be rude if i just stop talking back

he full gave me his number
it would be rude if i dont give it back

i made it pretty clear i have a boyfriend and everything
but he still continuously compliments me
saying im cute, funny, pretty etc etc
and even asked me so many times if i have a twin sister

im helping him ask a girl to be his valentine ...
he's even like "she looks like you"
......
idk ... how do you make someone go away! >.<

dont get me wrong he's real nice and everything
just dont really feel like i should be talking to him ..

ehh.. idk

tc,
Marjorie C, You Know Me