Luther loves rings. He wears so many--from plastic ones he finds to expensive gold/silver ones.

And well he got himself a mood ring to go on his hand and after some time of wearing it he noticed how it just...didn't work. It stayed black and didn't show his mood.

He was pretty pumped down (internally) so he decided to get you a matching one and while yours worked his still didn't. He tried switching them but nothing...

"Schatz...my mood ring is still black...the gem isn't doing what is supposed to do."

he spoke to you in his monotone voice.