Help services should provide teenagers persistent, constant and assertive help that reaches away for them. Young adults must know and experience the tenacity of somebody that is genuinely worried for them. This implies continuing to attempt to engage them just because they turn help down or display negative behaviours to practitioners wanting to help them.
This should not be misinterpreted as an informed choice or an indication of absence of harm or rejection of support but recognised as part of the complex power dynamic of the abusive relationship, similar to that in some situations of domestic violence and abuse if the child continues to have contact with the perpetrator.