John,
Congratulations on your quit! You girlfriend is right, you need to quit for yourself and not for her. Have her involved in the quit, invite her to this site, have her understand the process the addiction, how to post roll and keep your promise. Get a lot of gum, candy, seeds and anything else to keep your oral fixation in control.
Read everything on this site, PM me for cell number, texting and checking in helps.
Charles