why rejection hurt so much

[Mr Looks]

i had to reject a girl yesterday out of embarrassment bc she was too bad at communication. i was trying to arrange a date, she had already left the house and was in the place i had located but her timing was wrong bc she kept postponing because she was in class. she phone called me crying and saying she wish i was dead, i calmed her down then said im sorry for any inconvience, she sent a pic that she was still in the place and then sent a msg saying 'u are rejecting me?' after i turned off the call. i said im sorry. people bad at communication and bad with timing throw me off, but i liked her