Don't worry about the job, it's a good distraction and I am sure it will lead to something better and more satisfying for you. And you are not a screw up.
Do you really want to go home and live with your Mom?
#1. Future dating prospects - yeah I live with my Mom #2. Reconnection with W - yeah, I went back home to Mom's #3. What would that do for your self esteem?
But who cares what your dippy wife thinks. You are busy GALing to think about her. To her you have your fabulous new job which is so exciting and you are making so many new friends! I would sell it to her that way. :-)