When Louis sees her, devastated and powerless, she doesn't know how to be the strong one. She lets go and watches from a distance. Solange gets picked up by the bad crowd. Louis, not belonging anywhere else and missing her, tries to join but finds she just can't. It's her birthday and Father is not there.
Mother loses it.
And Louis can't hold on. She tears out of the house and in search of feeling something, anything, finds herself in Number 604's bed. She knows now, has an inkling of the emptiness Solange has been trying to fill. She also knows that the only thing that can fill her is Solange's friendship. In a final confrontation, they try to salvage what they had.