Task: Question Answering
Input (English): Context: Sunday came and went . The following weekends after holding off some activities for him to show resulted in a bunch of spare time with nothing to do because he blew me off . Then I started getting calls saying ' I did n't mean to blow you off . ' I found out the other night from a buddy who has his own Dr. Jeckyll / Mr . 
Question: What may be the problem with the person who blew me off for the activities ?
Output (English): It is quite possible he is bi - polar which would explain the change in personality .