your wife left two years ago. she doesn't view you as husband material for her. until you let her go and move on then you are fighting trench warfare. find people who value your time and who you are (GAL), post it on FB. take the pressure of her - let her go.
flirt with every woman you meet (not anything inappropiate). compliment them on their hair, smile, attitude, accomplishments, clothes, perfume and what they think. make other people feel important and special around you. do the same for your wife, if she sees you make another woman feel important it's catnip.
M22,H45,W45 S21/18D12 Retain faith that you will prevail in the end, regardless of the difficulties and at the same time confront the most brutal facts of your current reality, whatever they might be.