She can't imagine that Deadpool would want everyone to know that he's capable of discretion. There's a lot to be said for his reputation and what he tries to do with it. Which means she appreciates him being willing to exercises the ability even with the chance that he might use the information as leverage later.

"Do you think it's one specific secret?" She looks at the mask in her hands and her own fractured reflection. "Or do you think it's any secret that actually matters?"

Looking up to make eye contact with the man behind the masks, (she assumes he's wearing both masks in separate layers somehow,) Jennifer thinks Deadpool gets stuck in the Cassandra role more than he should. Yes, it's hard to believe what he says when he tells her that everyone will want her to become like the cousin they killed, but he doesn't seem to be lying.

"I'll keep that mind."