How do you think Prince of Mind<>Witch of Heart would work out, and Thief of Blood<3Seer of Space?
CN: At first glance I wouldn't think the Prince of Mind and Witch of Heart would be good moraii, but then when I thought about, they both kind of aim for the same thing of getting people to feeling what they want, the Prince by eliminating other options and the Witch of Heart by forcing them. I can definitely see the pairing working out.
As far as the flushed romance... well it's certainly not one I would expect, but if you think about both sort of aim for an understanding/simplification of complicating system it could probably work. The thief of blood could actually force the seer of space to lover him/her which is distressing, but at the same time the Seer of Space has an innate understanding of the surroundings and could get far enough way if they really, really wanted to.