How do I know if she's over her ex?

My friend split from her boyfriend about 10 months ago. Now she was a right mess for 6 months. She wasn't eating, her sleeping patterns changed, she joined a dating site the day they spilt. Met up with random guys on the 2nd week. She kept doing things out of character. She's still hadn't confronted her feelings about him. She never ever did. She didn't cry properly. Everytime someone mentions it she gets angry. Now I don't think it's healthy. She likes some other boy. She says she's over her ex. I don't believe her. She hasn't dealt with it. Whenever she has seen him. She gets really flustered and goes in a trace. What do you guys think? Does she need a good cry about it?