This is a follow-up to the question I posted about a year ago: How much damage would I be incurring if I turn down an informal postdoc offer?
My situation: I moved to industry about 6 months ago after declining a postdoc offer because I wanted to have some money and geographic flexibility to take care of a sick family member. However, moving to the industry has given me a huge identity crisis because I was passionate about my research and the scientific community I was part of. Now I am itching to just take the postdoc and I got to know that the professor is still looking. I am wondering how I would approach him or has the damage been done already? The word is out that I have transitioned to the dark side and folks that I knew in grad school (including my grad school advisor) have begun to treat me as an outsider. Not sure how taking up a postdoc position would affect me in terms of recommendations and academic relationships. Anyone ever done this? How did it go?
Edit: My PhD was in geoscience.