Most Helpful Girl
She still has feelings for you and is acting very jealous. She is trying to manipulate you and control you by spreading lies to other girls. She tells you to get with other girls because she knows you have to find someone else someday and she is trying to show you she's okay with that, but she's not. You need to cut off ties with her completely. She seems too immature.
Most Helpful Guy
She's feeling the pain of the breakup harder than you.
And she's also a bit crazy.