help me...!

Hi....I like a girl....we were chatng fr 2 .3
months....I thought she liked me too we wer
frnz....n?
... once we went on a dinner n the next day 1 of
her lover( though she doesn't like him) threatend
me n asked me to stay out.....I gt a tension and I
asked her to stop chatng and cut friendship but
after 2 days again I called her and told her that I
love her and Cnt live without her bt it changed
everything she stopped chatting and ignored
me....and when I asked sorry she din evn respond
and showing attitude wat should I do..? I wnt
her.... help me!!