One within the BPRD would be hard pressed to not get along with Mr. Abraham Sapien, though it is likely he will have his ups and downs with Rose as she seems to have an affinity for getting around the rules (at least from what I've read). Abe is a senior agent, but will take time allotted to get to know the new faces.
There is potential for friendship here.Biography Link, ClickyNuada
Nuada is not partial to humans, while you may not be a direct enemy of his, you are an enemy by proxy. By association. He dislikes the materialistic value and greed that has ruled humans for so long. He hates industry, and killing the planet, and most of all, he hates that his world. His race is fading at the hands of humans.
There is a very deep dislike he has for humans.Biography Link, Clicky
As for threading I'm just way behind and trying to keep up. I'll probably join in on Rose's in the BPRD with Abe when I get some time to breathe