A/N: Do not own. A one-shot for now. Enjoy :D
DWDWDWDW:
Doctor watched Donna Noble coo over her child, make faces and kiss its chubby cheeks. A smile lit up his face despite the pain he felt for losing Donna as a friend. He was just a stranger to Donna now, the person who said hello when she passed him, the person that opened the doors of the store for her a few times when her baby boy was fussing in her arms.
The Doctor enjoyed those moments because Donna would give him a bright smile, a grateful smile and wish him a nice day. He was happy for Donna, for the life she has always wanted became reality. She was a mother, happily married to a man who loved her dearly, but, The Doctor was sad too for Donna has forgotten all about their adventures and friendship.
Donna was one of the people he loved very much. Donna was like Rose, in a way. He loved Rose with both of his hearts but in a romantic way while he loved Donna like a brother would love a sister, and he lost them both. Sadness overcame The Doctor and he had to look away from the monitor which showed Donna. Cripling pain seized his hearts- hearts that were broken many a time and never healed completely-and he closed his new, green eyes to hide the tears.
Every person he has ever loved went away- one way or another. Susan, Rose, Donna, River, Amy, Rory... Sometimes, The Doctor wondered how much heartbreak he could take before regenerating just out of pure misery. TARDIS hummed comfortingly, knowing and feeling what he feels for she loved and lost them too.
The Doctor smiled through his tears, straightened his red bowtie and stood up, his back straight.
"Shall we visit our friends that don't know we are friends once again?" The TARDIS hummed in confirmation and The Doctor danced to the controls, a giant grin on his young face.
He set the coordinations and went back in time, not noticing two words from a time before, glittering in gold.