“Have a good life. Do that for me, Rose. Have a fantastic life.”
The daleks are back, the Time War is resurfaced, and the Doctor’s going to die. So what does he do? Well, he’s the Doctor, so he goes headfirst into it, but not without saving the most precious thing in his life: Rose. By the end of series 1, the Doctor knows he loves Rose, but he’s afraid of confessing it because he doesn’t know if she loves him back. His, what he thinks is his last, message to her says no more and no less than “I love you” when he tells her to have a good life. Love is nothing, if not desire for your love’s happiness.