Glad to meet you, Anthony, and glad you found Healing Well.
Sorry this lady has knocked the wind out of your sails, but despite your topic, I suspect you Do know what to do. Go to work, do your job, talk with other friends, enjoy your Life. The most attractive person around is the one having a good time.
Whether you've been officially diagnosed with depression/anxiety, or are dealing with a relationship situation right now, it is always good to talk about it - if for no other reason than to clarify why it is getting you down. You are certainly welcome to do that here. Since this has already been going on for a couple of months and is affecting your eating and sleeping habits, you'd probably benefit from a check up with your GP, too. Perhaps some therapy would help you gain a better perspective.