I have no idea if there are ever exceptations made, but currently when a sister severs her bonds of membership, she is very well informed that she can never again join a Delta Gamma chapter or any other chapter of NPC. I think it's sometimes a little sad because I know some women who are in the same situation as your friend. Sometimes, however, they still love DG and would have made wonderful alumnae - if only they'd stuck it out! I guess it was their own choice though.