//Not pursuing a relationship with Koakuma wouldn't make her happy.
//On the other hand, pursuing the relationship might do some, possibly irrepairable, damage on our relations with the others, primarily with Cirno. Then again, it might not, hard to tell... There are also difficulties with actually pursuing it, since Koakuma lives in the mansion, a place we can't just go in and out as we wish. Yes, we can visit it once in a while, but still. (The "enmaidment" is no longer a viable option, right?)
//Tl,dr: Not doing it will hurt Koakuma, doing it is basically a gamble that might hurt everybody. I'm leaning against it for now. because an opinion of a random person who barely posts now certainly matters