Is listening to the first party, after the mother interrupts him and begins to speak, considered disobedience, and what if the interruptions are repeated?

Listening to the speaker's words and not interrupting is among the virtuous manners, and a mother should not interrupt her companion's speech. However, one should not turn away from a mother's speech on the pretext that she interrupts others, because that is against honoring and being dutiful to her. Not listening to her is harshness and disobedience. Rather, she should be advised gently and kindly.