I don't know what to do.... my friend always said 'Ugh I'm so depressed' but we would always pass it off as a joke, well today she was extremely grumpy and upset... I asked her what was wrong but she wouldn't tell me, so as always in a joking manner I said "Omg stop being depressed!" Well during lunch she was looking at her phone, hiding her face with her hair... one of my best friends finally spoke up and asked, she revealed her face to show that she had been crying.... I don't know how to cheer her up I'm scared she might commit suicide...