Certainly you know your daughter better than any of us on the forum, but it sounds a little concerning to assume that she is not actually suicidal and is only repeating things she has heard on social media. Is remaining neutral and walking away the advice you were given by either her T or your T? I can only speak from my own experience, but when I was just a little older than your daughter and I would tell my dad just how depressed/at the end of my rope I was, his response was to walk away and say nothing. He assumed I was just overreacting. For me, that was the wrong approach for him to take. I could have avoided a lot of pain and future therapy if my dad had taken me seriously and been more loving/affectionate instead of neutral. I'm 31 and I can still vividly remember my dad walking away when I would tell him just how bad I was hurting and, in the best way I knew how, screaming for help. I remember how badly it hurt that he didn't believe me and it didn't seem like he cared if I lived or died. Of course, he j ust assumed I was "repeating what I'd heard" and "being dramatic." He thought I was too young to understand what I was saying. But I wasnt. Every kid is different, but it seems very risky to assume that your daughter doesn't mean it.