Say, for example, you are a male hetrosexual. You have a male best friend whom you care very much about, in fact love dearly yet in a completely non sexual way. Would you marry your male best friend because you love them?
A Kran by definition cannot be male, so this pretty much ends the logic of that chain of reasoning.
As far as the topic of Kran having emotional responses that are analogous to what we know, well lets put it this way, settings has nothing to say on the subject of Kran emotionality, so we can pretty much RP them more freely than perhaps we can Ylian, since ylian are constricted to 'normal' human emotional responses.
RP in PS must be in line with settings, however in situatuions where there are no rules defined, then we must be free to decide for ourselves how we RP our characters. To define Kran as emotionless, or incapable of feeling empathy for other beings would leave us with nothing to do with kran other than to mindlessly eat, sleep and reproduce. If we allow kran any emotional responses then they must be allowed to express them, in a consistent RP manner, this must include Love, Hate, Passion, Ennui, or in fact any emotion that we as humans feel appropriate to the situation.
I for one think that Socius has it right, we need to think beyond our narrow RL definitions in a society that has many sentient species, since sentience appears to include emotion.
Finally, I'd like to congratulate Kemedes and Akashani, and wish them happiness in their union