Remember that triangle of Nice Guy, Jerk, and Integrated Man?
Be that Integrated Man.
Whenever you have contact with her, treat her like someone you respect and care about a lot. Be a gentleman. Be strong, confident, someone she would want to be around BUT...do not give her that luxury. Minimal contact/be at your most attractive.
As little contact as you can manage, but high quality when you do.
Don't be cold to her. Be BRIEFLY friendly, upbeat, supportive. Then say "okay I gotta run, I am meeting a friend" etc.
Emphasis on BRIEF.
Spellfire aka Mike
"Women do not like controlling men. They respect and are attracted to men who control themselves. They ultimately are repelled by men who allow themselves to be controlled." -S&A