Love. She had loved him with all her heart, and likely still did worlds away. Even if it was a love unreturned or never exchanged sweet and tender kisses, despite it all still it remained. For the billions of stars in the galaxy if all aligned end to end won't match her love for him. Before meeting him the thought of understanding the greatest emotion was a merely a fairytale, only an allusion. The feelings inside had been all wrong. Love meant giving everything away just to be with them. Love was trusting completely and being trusted equally. When in love only two matter for the rest of time.
Jackie sat quietly watching her daughter as she stared out to space, eyes again seemingly focused on a memory, her beautiful smile still absent. Though she was grown and mature Jackie wanted nothing more but to hug the hurt away or even shake reality back. This was the world now, right here, without the Doctor. She knew to give Rose time, to be patient and love her unconventionally. Once separated the heart is forced to move on, but it never heals, yet the pain can soften through time.