Supportive

Being supportive is not the same as being in agreement. At some point, your friend will make a choice that you think is unwise. You don’t have to condone it, but you can’t ditch her just because she’s not the person you want her to be. Love is unconditional. Give her your honest opinion and do what you can to stop her from hurting herself, but if she refuses to change her mind, then just let her know that you will be there regardless how things work out.