Angel thought she was the same as everyone else but she has a gift she doesn´t want and can´t return, a gift called second sight.....
It was Abigail who told Angel that she was different to other people but Angel didn´t know how different. Angel had to learn at an early age the difference between looking at those who are alive and those who aren´t. If you look back at the ones who aren´t, they won´t stop hassling you so Angel stopped looking at anybody and people call her The Wierdo.