Just a suggestion, but, due to the finicky nature of how [*h1], [*h2], and [*h3] interact with [*center], it is better for the "Location", "Action" and "Emotion" to be placed on their own lines, as:

[code][center][h3][color=90C8AC][b]Nibiria[/b][/color][/h3]
[sup]Interacting with: No-one
[h3]Location: Nibiria's Cottage[color=a9a9a9]|[/color][/h3]
[h3]Action: Relaxing in her study[color=a9a9a9]|[/color][/h3]
[h3]Emotion: Neutral[/h3][/sup][/center][hr][/code]

Which results in;

[center][h3][color=90C8AC][b]Nibiria[/b][/color][/h3]
[sup]Interacting with: No-one
[h3]Location: Nibiria's Cottage[color=a9a9a9]|[/color][/h3]
[h3]Action: Relaxing in her study[color=a9a9a9]|[/color][/h3]
[h3]Emotion: Neutral[/h3][/sup][/center][hr]


Instead of:

[center][h3][color=90C8AC][b]Nibiria[/b][/color][/h3]
[sup]Interacting with: No-one
[h3]Location: Nibiria's Cottage[color=a9a9a9]|[/color] Action: Relaxing in her study[color=a9a9a9]|[/color] Emotion: Neutral[/h3][/sup][/center][hr]

I really like the original set up, but it very finicky with bbcode and screen space.