This is really painful to write about but DD age 17 got involved with a horrible BF who I think is about a year or so older than her. She is now with another BF who is really lovely and such a good person. However the ex (who gave her drugs and took advantage of her) is still contacting her asking if she misses him.
I know this because the new BF has told me this - I am in contact with him without DD knowing, because we have both been trying to support her with her mental illness. He has contacted me when she's been having an episode. (she lives away from home and near him. Abusive ex lives in the home area here so at least most of the time DD is physically a long way away from him).
Today I texted the BF to say can't DD just text the ex that she wants no more contact and that she is with someone else now, and then change her mobile number. BF says yes hopefully she will do that at some point. I can't tell her directly to do that because then she will know I'm in contact with her BF and I will lose her trust.
I said to BF that to my mind, ex should be reported to the police. BF said DD won't report him because his friends will "get her."
What can or should I do?