This is what boundaries are for, if you decide you want to keep some part of the friendship for some reason. But you don't have to entrust and hand your whole life over to her on a silver platter. It's not a poker game where you're in or out (even if my mother treated our r/s like one, and only one winner). As for the remarks about your daughter, these may be coming from her own unresolved CSA issues, not actual intentions or leanings.