Based on the context and the answer, generate a question. 

Context: I was so excited that I might have gushed a little more than necessary , but oh well . Maybe she 'll get excited and apply . In other news , my mom called and said that John finally mailed my textbooks back to me . I only had to wait three months .

Answer:

I loaned them to him a long time ago and he is just now returning them .



What may be the reason John mailed the textbooks back to me ?