She's in her Pulitzer Prize do anything for the truth mode. Of course Lois will be looking predatory. As for Babs, she's stressed about losing everything. The fact that Pulitzer Prize winner Lois Lane is also Lois Kent is sort of not realizing Clark is Superman. Its two completely different persona's possessed by a lot of Journalists and professionals in general.
Babs is freaked out and Kat is sending as Babs put it the scariest woman in Metropolis after her. Shes not thinking straight and as the night goes on you can see Babs getting her wheels under her figuratively speaking and getting into a proper conversation without having to pull out the big guns of her knowing about Clark.