i don't know what happened but it seems like i don't get easily attached to someone like before, as i grow up parting with someone is normal. before i'm really scared that the person that i just met and got attached to is going, i realized that nothing is permanent in this world. of that person is really parting with you, you shouldn't be sad. you should be happy that you met them and made good memories with them. for me to not be hurt to say goodbye, i prepare myself that someday, that person will leave too eventually.