] Or....here's a Way Out There thought- perhaps Randolph really IS trying to "help" Caroline on the sly? Perhaps he knows what Parrish is up to (assuming Parrish is the guilty party, or involved at least) and has begun to pity Caroline?

That doesn't sound too far out-Randolph seems like a good enough fellow but his connection to Parrish makes him look bad(perhaps more than he should be?). Parrish has this Wickam sort of vibe that makes look on him less kindly.