凉姑记住你我的
[liáng gū jì zhù nĭ wŏ de]
This nickname probably comes from some personalized story or inside joke. 'Liáng' sounds like 凉 ('cool' or 'chilly'), so this name can indicate someone whose memory remains as clear as the cool breeze; it can also hint that both parties remember each other's presence as if being refreshed by this chilly wind.