[Threepio comes out of the memory, not sure how or why he saw it. But he's more than aware enough to understand what he saw. And that it's an important but painful memory.

He blinks, going to draw his hand back before instead gently placing it on Beau's shoulder.]

I...am not sure what just happened, but I apologize for my intrusion.

It sounds like he was quite a colorful individual. You have my deepest condolences, Miss Beau.