Hi Wonder, I'm going to take a slightly different slant here, altho I'm not implying anything was by design or not ... but when it comes to confrontations, timing plays an important role in doing it in a way that works for both vs. repeating what doesn't work. When have you noticed that H is more receptive to being approached on delicate subjects? If the outcomes tends to be more positive in the AM vs. PM then maybe subliminally, it felt more comfortable to call him in the morning?
What I'm getting at is don't beat yourself up too much with that 2 x 4. The fact that you called the next morning to address the issue with H says to me that you were not necessarily in avoidance mode but waiting for a time that works better ... at least it did for you!