You answered your own question... TIME. Time is in this instance your friend. Go "dim"... be pleasant but don't engage. Or ask her to leave. (If you're ready).
Fry pan in the head does wonders. She wants to flee... make her. Give her a taste of what her life will be like without you.
I suggest you go dim first though. Sometimes it's enough.
T:22, M:20 H:55 Me:45 H-OW PA: N/07 OW Jan08 Bomb:Feb/08 S: Apr/08 Back together Ap1/09-Sept/11 Oct, 2011, uncertain future/H is a mess. Dec/11 - Doin'friend mode. Some days are better than others.