<human>: Could you distill the essence of the text into 1-3 sentences?

She talks to her so called friend , they were best friend for years. But he is not a guy with good intentions he asked her out and she rejected him once . Now in class sometimes when I am not there , they talk alone . I really don't like this because I know his intensions , he only wants to use her for sex. She usually comes uses hangouts and viber. She says she rarely talks talks to him in hangouts which does seems true because he does not come online every time.

 One day after school they were sitting in a cafe which right next to our school , She was having extra classs and was waiting till her friends come . She was talking to that guy alone . I do talk to him but I don't like him much , my friend went to talk to him so I went , just smiled and said bye to him , she said "no bye for me" then I just gave a smile and said bye.
Next day in school , she was kinda upset the whole day. Called me and asked me are you feeling bad when I talk to him , I said no I don't. Then that night she sent a long message that she knows his intensions and she will never go out with him , that she knows her limits and she is only talking as friends . Yesterday in class , I came early was talking to my friends. She also came early and was talking to him. 

She told me she used to have a crush on him, I am just curious do they flirt and even she lets him touch her. 

sorry for if I used bad grammer.
<bot>: Should I tell my crush I don't like her talking to that pervert friend on hers and I won't talk to her when he is there?