I think girls who are unfortunately genuinely ugly, or not in the slightest bit attractive are probably acutely aware of the fact. I have one wonderful friend who is like this. She is under no illusions whatsoever. What she lacks in physical beauty she more than makes up for in a fantastic personality however. The whole false eyelashes, fake tanned, hair extensions duck faced pouting "creatures" DO come across online as thinking they are God's gift. But then as you say, if their friends and their entire social circle is constantly telling them how gorgeous they are they are going to believe it. A lot of girls seem to equate being attractive with how many men are either interested in them or want to s hag them, as if this is somehow supposed to be some sort of compliment.