Viveca really as promiscuous as she admitted? As she said something like " i like young men; lots of them". and then Columbo acted uncomfortable. or was she really telling Columbo that it was not that big of a deal or coincidence that she had dated Karl Lessing?
I don't know about the other things, but I think she wanted to rub in the fact that she saw a lot of men because he seemed uptight about it. Sort of like Cathy Goodland.
Which would make sense to me if Columbo ever actually SAID anything like that to Viveca or Cathy, but he didn't. People should wait till someone actually TALKS that way to get after them for it.