[Watches him staring, then scratches the back of his head feeling a little uncomfortable. Which causes him to ramble.]

Well, I was going to get stuff to help keep you calm. You know to get around what happened a month or so ago. And well, to keep generally just calm and easy going... Not that you aren't normally, just you know in case you're feeling more stressed than normal, like when Sherlock and I are bored at the same time or something, and I was in the store and they had all these smells and well I had no idea what's the most calming and what just smells nice.

So...

I bought it all.