Why the sarcasm?
1. The strange thing is that the writers managed to come up with good Kes stories almost up to the last minute of season 3, then all of a sudden they lost that ability. Must have been something in the coffee they started drinking between season 3 and 4 or........?
2. To answer your second question, I don't know. I'm not a mind reader.
But if we assume that she was happy to be dumped after three seasons, then she could have come up with a statement about it at the beginning of season 4. That would have prevented all kinds of speculation and rumors.