What do I do? Should I now proceed and initiate these possible friendships? I have little doubt that I will be completely honorable. What do I tell W if she asks? Will that drive her back to her own EA?
Surrender, no matter what your situation, you can never have enough friends. I kept close contact with my friends all during my M and they were a godsend when stbx dropped the bomb. These were the kind of friends that were tried, true, and tested over the years. My very best friends. They were the ones to drag me through this and helped me keep my chin up. They were priceless at that time in my life.
Tell your W the truth. Your going out to meet some friends. Why would that drive her back to her own EA? If you having friends affects your W's behavior in that manner, maybe you should be asking yourself if she's really somebody you want to be with in a committed relationship. I couldn't imagine the stifling affect my W would have had on me if I couldn't occasionally do things with my friends without her throwing a fit.
"It is curious that physical courage should be so common in the world and moral courage so rare." -Mark Twain