Don’t be a jerk

I am in a lower mid tier sorority. A few weeks ago I was at a frat party, and a guy from the frat which I will not name came up to me. We had a really good convo for awhile and then he asked me if I was in a sorority. When I told him, his whole demeanor changed and he said “eew really?” Can we as a community just accept that there are pretty, smart, and kind girls in EVERY chapter, and that your organization is not your whole identity/personality? In my opinion, if you find someone attractive before knowing their organization, knowing they are in a certain chapter should not change that.