I believe we can have qualia of "internal" sensations.
Qualia is of our internal brain activity, and therefore there is no reason in principle why it should be restricted to senses corresponding to external phenomena.
that is, when you are looking at your monitor, you are having qualia of the activity of neurons in your brain, not of an external monitor.
therefore, there isn't really a difference between having qualia of color, and having qualia of sexual desire; these are two phenomena occurring in your brain for which you can have qualia.
so yes, you can have qualia of emotional sensations, such as affection, or anger, etc...
As for love, this is a bit more complicated since it depends on how you define love, or being in love, or feeling love.
I do not believe we have qualia of abstract concepts, such as justice, etc... so if you define love an abstract concept, then the answer is no.
if you identify love with a combination of anger, sexual desire, strongly wanting to make sure someone else is safe or happy, etc..., then the answer is yes.
and if you do not know how to define love, then the answer is who knows...