Big girls cry

Rainbow Dash is fine now, she is healthy and smiling again. But it doesn'the mean she can't cry anymore. And that is why Scootaloo is there to be there for her even though she might not understand fully.

Scootaloo always thougreat that Rainbow Dash was the coolest pony in Equestria. That she was so tough that she would never cry,
That she would never have cracks in her armour.
Rainbow Dash is her big sister, her role model.
But big girls cry when their hearts are breaking.