Without delving too far into the thought process, many of you have the right direction. Relationships, even long term ones, can change on a dime, particularly under stress and almost always due to poor communication. Our heroes in this series, at least the males, don’t always communicate well, don’t always explain themselves, and (like many guys, myself included) don’t have as much emotional intelligence as their female compatriots. In short, despite being super human, they’re still human and flawed. The super part, would, I think, make things worse in situations like these. Gramps would call the encounter a teachable moment and likely point out the dangers of being boneheaded.