- As of “Last Christmas”, the situation finally seems remedied when Clara, tricked by an illusion into believing that her life was almost over, outright stated that he was the only worthy husband she would ever accept.
Do. Not. Hurt. Clara. Oswald. When she is at last Killed Off for Real in “Face the Raven” thanks to Ashildr and the Time Lords’ plot, he becomes The Unfettered in his efforts to get her back, and risks tearing apart the universe in the process.
- A sign of his deep affection for Clara in Series 9 is his new willingness to hug her in moments of particularly high emotion.
Initially this Doctor is basically not nice to anyone at all unless their name is Clara Oswald.
- He genuinely has no idea what he’ll do without her. Thus, he becomes a destroyer of worlds who will risk destroying the universe just to get her back.
In the wake of Clara’s death, he wants to make anyone who had a hand in the plot that left her dead pay.
- They still care very deeply for one another. The kind and tender moments between them really shine through.
The Doctor will save his beloved Clara, no matter what the price.
- Earlier in the season, the Doctor’s use of “duty of care” appeared to be an indication of his overprotectiveness of Clara, with Clara becoming visibly annoyed with it in “The Girl Who Died.” When the Doctor utters it as justification for putting himself through hell for Clara, she finally recognizes it as a form of love confession.
His memories of one of the great loves of his lives are compromised.
In the end, his love for Clara and the suffering he went through in the previous two episodes is too much to bear without losing sight of who he is and must be.
- Though Clara is not his relative, he’s grown as close to her as if she was his family.
Although the nature of the Doctor’s love for Clara is a matter of debate, there is no ambiguity that the one-two punch of “I had to find a way to save you” and “I had a duty of care” functions as this.
The Doctor’s love for Clara has become so powerful that he cannot accept losing her.
When Clara objects to the mind wipe, he fully understands at last that he is hurting the woman he loves and they mutually accept that their mutual love is doing the universe more harm than good and they must go separate ways.
His grieving for her confirms that the Doctor’s feelings for her went beyond platonic love – in fact, they went beyond romantic love, too, to a completely different level.
- More than any other companion, Clara was the closest the Doctor ever came to having a soulmate.