Should I end the "friendship" for my own sanity?

She used you, teased you, and you fell into it hook line and sinker. You KNEW she was straight and could fall for a guy at any time! There can be little separation for your heart now between love and friendship. Your head should of told you better! And being coworkers makes it even more difficult...I'm glad I'm not in your shoes. If you can convince your heart that there was no , thus no love...maybe you can still be friends just make sure it is on your terms....which means cancellation of most to all of the things you wrote in your first paragraph. It started about a year ago, with strong resolve you can get it back to a manageable position. The other alternative is leaving the job, something you probably don't want to do in this economy. Buck up, chin up and go forward. Good luck. Just my thoughts.