The Shield was unstoppable. They got a fourth member, Suicide Bliss, in late 2013, then she began to date Dean Ambrose. He loved her. Protected her.
They were completely inseparable & protected each other to the max. Everyone knew not to mess with them unless they had a death wish.
So when Suicide shockingly betrays them, everyone wants answers. No one knows it's by the hands of The Authority. She takes all the hate & the blame for The Authority.
Dean breaks her heart. Seth & Roman cut her off. Her other friends cut her off. No one knows that their girl is suffering. At the hands of The Authority. All the attacks & the bullying in & out of the ring just became too much that she just quit.
When The Authority reveals the real reason Suicide Bliss quit, everyone immediately feels guilty. They try to contact her but no one can reach her.
It's too late for anyone to help her. She's already relapsed into old habits. Drugs, self harm, depression, and anorexia.