This was a great scene, full of emotion and complex layers. It makes more sense, I think, if you go back to the first episode of the season, wherein Piz asked her the simple, direct question of why she solves crimes, and she was so defensive. The reason she was so evasive and brittle? She doesn't know. She doesn't know what's driving her, and this is one of the more interesting things about her character. Is it that she feels the world is a bad place and it needs all the help it can get? Is it a need to prove to people that you can't trust anyone (as the A-plot of "Of Vice And Men" would suggest?) At this point, it almost doesn't matter, because Veronica is unwilling truly to examine why she is the way she is. That's why Logan stymied her in that argument, and it's why, I think, it makes sense that she dodges him at the end of the episode. She can't explain why she won't give it up, because she can't explain why she does it in the first place. Anyway, I apologize for all the analysis, but once again, I'll fall back on blaming Patty Hearst's presence.
Lamb shows up at the Rose estate and informs Mr. Rose that they found one of Selma's earrings in his "girlfriend's car." He adds that they found love letters from him on Hallie's laptop, and she, after some interrogation, suggested that Lamb check out the guest house. Mr. Rose looks scared, but perhaps not quite as scared as he should. Especially given what Brandt's likely to do to him the next time he falls asleep. Commercials.