Did Nicola Roberts Just Throw Shade At Sarah Harding Over CBB?

After seeing the 31-year-old's latest Instagram post, that's what some fans seem to think...Eep. Did Nicola Roberts just make a thinly-veiled dig at ex-Girls Aloud bandmate Sarah Harding?
As you probably know, Sarah is currently in the Celebrity Big Brother house. She hasn’t had the easiest time so far, and now she’s divided viewers with a conversation about girl group Fifth Harmony.
See: Cheryl Won’t Let Sarah Harding’s CBB Appearance ‘Drag Her Down’
Sarah Ha