Mellow Yellow & Muted Grey

As promised, here is my other color scheme I'm considering (they're both 50/50) for my master bedroom style project. If you're clueless, feel free to familiarize yourself with the original post.

I especially gravitate toward these two colors together. I don't know what it is. It's the same as chocolate and pink for me. Ob-sessed.

Maybe it's that with these two colors, you're just meandering along peacefully with Grey, then POP! Yellow comes in to say hello and you are hooked on the vibrance. They're like a sweet married couple. Grey tones down yellow, yellow lifts grey's spirits. I'm not saying Grey is dreary, by any means, it happens to be my favorite color (can you believe it tops pink??).

So there you have it. Lavender & Grey vs. Grey & Yellow. Notice grey is going in there either way. Clever little bastard.

Weigh in with your thoughts, what do you think of grey & yellow together--have you used it? What do you own that is a bright yellow color? Which should I choose when I start the project this weekend?

HELP.