That's just the way Logan is... that's what Veronica tells Parker when asked if Logan simply doesn't think about other people. And it's true. But the ironic part is what Veronica doesn't see... that's just the way Veronica is too.
And that was made evident at the end of this episode when Veronica is so happy about being accepted at the FBI for a summer internship. And why shouldn't she be happy? It's a great opportunity for her, but Piz doesn't see it that way, particularly after he considered taking an internship at a top 40 station, just so he could be near Veronica.
Is this the beginning of the end of Veronica and Piz? I think it is, and I just hope that it's the beginning of the end for Logan and Parker too. Which, of course, will leave Veronica and Logan free to get back together!