My sister once dated a guy in high school for only about 2 weeks. I knew she was dating him but didn't know that they already had broken up...so one day I asked her "hey, what happened to [her boyfriend]" ...
and she said "oh, we broke up the other day"
her: "I found out he was ugly"
What does it mean if a girl says that she found out her boyfriend is ugly? How do you "find out" that the guy you've been dating is ugly 2 weeks after dating them? lol
His personality was ugly she means lol. An ugly person can be someone who is horrible.
That means that other people thought he was ugly and gave her crap for dating him. Obviously she saw him and didn't think he was ugly enough to turn down when he asked her out, so she probably got outside pressure to do it.