Hello all of my lovely bad ones. I apologize for such slow updates but school is a dreadful pain. But however, it shan't stop me from progressing in this book. As usual have a horrific day and may this riddle bring you lovely confusion..

A girl,  at the funeral of her mother,  met a guy whom she did not know. She fell for and just kept looking at him. Sometime later she realized that the guy is gone and she forgot to take the number of the guy and now she can't find him. A few days later she killed her elder brother. What is her motive in killing her brother?