Villain or bad guy
I'm not looking to argue, want to see what others think and how they see things. I'm terrible at analyzing and explaining things but I don't necessarily see Bear as "the villain", yes he is a bad guy but see him more of an idiot.
Now let me be clear, Bear is not the victim at all, he is absolutely responsible and is not a good person, but I don't see that as being the villain.
Best comparison I can think of is Joker and Harley Quinn. Despite being completely obsessed with Joker, he is always in control, abusive, and manipulative, anything inconvenient he deals with it in some aggressive ways. Bear in the other hand, no control, just denying everything wrong, and always uncomfortable.
Maybe just me, but when I think of "villains" I usually imagine someone bad and doing whatever to get what they want. Bear hit Nikki yes, but he wasn't exactly enjoying his things turned out, that's why I see him more of an idiotic bad person, not a villain.