How to know if you've been blocked on Kik (iPhone)?

Someone I was very close to suddenly stopped responding. I have no idea why. I still see when she comes online and goes offline since it changes from dark to faded d and vice versa. If you're blocked, can you still see that change? Or does it stay faded/light always?

Does it actually matter if they stop responding? You are either being blocked or ignored, either way the message is the same.