my room mate's het g-stripe refused like 4 meals from him. he tried live and f/t and prekilled but he just wouldnt eat. then the day that im feeding everyone, he's at work so i offered him a live mouse, probably halfway to full grown idk what that would be, and it took a little coaxing for him to realize it was there but i got him to eat. he did same thing as yours and went back to sniff the air around the kill spot but just went and hid in his hide after. i agree its a load of your chest when they finally eat, and my room mate was kinda upset that he would never eat for him but that i got him to.