Board Thread:Speculation House/@comment-14138255-20151101163739/@comment-25396609-20151107045327

Ironwood and Glynda's main conflict is definitely over his more brute force methodology, but they have a degree of familiarity beyond that conflict which hints at something more.

Winter and Qrow... We don't know a whole lot besides who they are, and in Qrow's case what he's been doing, so our only knowledge of their interaction is based on the fact they death glared the crap out of eachother in the intro, and are going to fight it out upon first contact in show. We don't have a whole lot else to go on so until we know more the best we can do is speculate, which in this case does involve theorizing that they may have been romantically involved at some point.

I try to avoid shipping where possible, but it is one possible explanation for the apparent bad blood.