No, the provided information states that Donna was accused of cheating on Eric, but it does not confirm that she actually committed the act of infidelity.
Understanding the Accusation
In Season 8, specifically episode 6, titled "Long Away," it is revealed that Eric and Donna's relationship ended offscreen. This breakup occurred after Donna faced accusations of cheating on Eric with a new character named Randy.
While the accusation served as a catalyst for their separation, the information available does not explicitly state that Donna did, in fact, cheat on Eric. Following their breakup, Donna does begin a relationship with Randy, but she ends things with him before the season concludes. The sequence of events indicates that the dating of Randy happened after the accusation and the subsequent breakup, rather than during her relationship with Eric as an act of infidelity.
