Inactive Member?

[Vitalityphi]

I joined a npc sorority, i absolutely fell in love with my chapter and sisters, i pledged and became active, after my first semester- i was supposed to have a position and had a strong possibility of gaining a little. however after my first semester i unfortunately left the college and had to go inactive. the school i am currently attending does not have a chapter of my sorority. i am constantly visiting my old chapter and i attend many of their events and i meet the potential new members every semester. I am graduating early and hope to go elsewhere for grad school. i have been told that joining a sorority in grad school is not an option.

i was wondering because im not "joining" an org if it was a different situation. if i was just becoming active again, if that is a viable option? i was told going alumnae makes you ineligible for positions or littles. is this true? has anyone had this experience before?