If no one asked for your opinion on their personal lives, please don't give it out. It's perfectly OK to stay silent in this instance.
At this point you've been thrown into a circumstance, well, not of your liking. Someone has pulled you onstage, asked you to present first even though you're sorely unprepared or even included you in a lie to a family member. Sometimes your aunt doesn't need to know how much your cousin drank from her liquor cabinet. So what do you do?
We don't really know what goes on in these people's lives. That's part of the reason why we follow them on Twitter, Instagram, Tumblr, Snapchat, etc. We want to know the secret formula like we're evil geniuses with a sinister plot. That's how we look when we get jealous. Seething, green monster ready to devour our better off peers.