[ she takes in everything they say and a sinking feeling starts to set in as she looks at the other three people at the table. she shakes her head at archie's suggestion, or well, his implication of a suggestion, backing up jughead.]

No way, Arch. You're not putting yourself in danger just because you're the most athletic of us all. Besides, you're a terrible liar. [ she gives him a tiny smile before she glances at veronica, feeling the truth in her bones.] I think this is something we have to cover. [ because she and veronica are the best liars amongst them. both jughead and archie are not liars, in different ways. archie is very earnest and jughead's emotions play out on his face too often.

veronica would probably agree that betty's ability to lie is good, to play a part is better than good.]