First off - it sucks that you deactivated - you may regret it later in life and want to be involved on the alumni level and now it's pretty likely that you never can.
Secondly, my views on Greekdom have greatly improved since I joined. I knew very little about sororities and thankfully I met a wonderful Chi Omega who talked me into going through formal recruitment. I am nothing but proud to be a member of ZTA, and a Greek in general and I consider myself part of a truly wonderful tradition.