Are there any moments in the book where Frenchie and his non blood related family show what it means to be family or examples of that?

Frenchie really cared about RiRi like she was a little sister (she wasn't his sister). RiRi was seven-year-old Métis girl from a community near where Frenchie’s family is originally from. She is playful and mature for her age. She dies when Travis captures her and grasps her as he leaps from a six-storey cliff. Frenchie kills Travis out of a fit of rage after RiRi's tragic death.