I do think the Doctor loved Rose. (The Doctor loves all his companions to varying degrees, even Peri and Adric.) I really don't believe she was his One True Love and I have my doubts as to if their love was romantic. Mostly I read it as a very affectionate friendship. And losing your best friend can make you just as emo as losing your boyfriend--more sometimes.

I suppose Jamie doesn't get pulled enough out as an example probably because of the whole burnination. It makes it hard to rejoice in his and Two's Utter Married-ness when most of their serials have holes in them.