Read the following article and answer the question.

I still have a hard time imagining it myself . " He told investigators he brought his girlfriend food and water , and asked her every day to come out of the bathroom . " And her reply would be , ' Maybe tomorrow , ' " Whipple said .

What may be the reason the man was asking the woman to come out of the bathroom ?
She had locked herself in the room and would not leave possibly due to mental issues .