First, I should point out the original work of Ralph Adolphs, the Damasios, and Dan Tranel on this case [0]. It's a short, important paper that started this whole line of investigation based on the single extraordinary case of SM.
In my interactions with her, SM was uniformly happy, and it's my impression that she's like that in everyday life as well. A former labmate, Justin Feinstein, wrote an interesting paper based in part on observing her in real-world settings [1]. He didn't observe fear in any of a variety of potentially frightening contexts — she generally confronts such contexts with laughter or wonder.
Regarding love, she's deeply attached to her family. I distinctly remember stopping when we walked past the hospital chapel so that she could pray for members of her family. I can't say as much about grief, but she never seemed anxious in any of the time that we spent together, and she certainly never got angry or even upset.