She's been vague but it's in many of her recent interviews.
Part of it is what she alludes to in some press, that her original exit was probably not 100% peaceful. This has been mentioned before in other accounts not from her: Supposedly she told them she wanted to go to college full time and supposedly Roseanne told her she was either in or out, and Lecy chose out. The other issue is that, from everything I've heard, Season 8 was sold to the cast as the final year, which is why Lecy chose to return. John Goodman was also ready to be done and by all accounts (including his own) was deep into his alcoholism at the time. That whole penultimate year sounds very messy and full of tension, especially with the Beckys switching off, Disney taking over ABC and forcing a Disney World episode, and so on.
Then Roseanne abruptly chose to do one more year, and Lecy left again and Goodman decided to do half the run. According to a report at the time, he tried to quit entirely but was convinced to do half the season - originally they feared he would only return for one episode to kill off Dan.
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