Friends no good bf

My friend was talking to me about her bf and she said he told her he had sex with another girl but he told her he didn't nut so it don't count as sex .... So my friend was mad but she said she feels a lil better bc he didn't nut. However she still talks to him and as a friend I tell her straight up he is no good but of course she is so in love she can't let go . I'm a lil annoyed with the whole thing bc she just hurting herself over and over with this guy and never wants to take advice she asks for . And then keeps asking what to do after I tell her time and time again . I just started ignoring her text bc I know it's always about him. What more can I do? I definitely don't wanna be a bad friend.