Note that her comments about the firing is a rather recent one. She kept quiet about the subject for many years, only admitting once, when asked about it at a convention that: "Yes, I was fired!".
I can compare with myself there. A couple of years ago, I was fired from a job I really liked (for economical reasons). I was very angry and disappointed at the time. Today, if people ask me about that event, I just shrug and say "s**t happens". I've left it behind me a long time ago, even if I still think that the company handled it badly at the time.
As for the "Lien case", I still think that it was badly handled by those in charge and the firing was unnecessary as well.
Well firing is different than a contract not being renewed. It's like being fired vs being laid off.
Anyway, like I said since we weren't there to know the real feelings, I will believe the actress herself when she said there were no hard feelings and she wasn't upset about it. If it makes you happy you can believe otherwise