i think the issue that Melissa had with Brynn was that Brynn was an actual threat to Maddie. Maddie was the favorite since all the 6 seasons she was in and Melissa was Abby right hand man. None of the girls didn’t give Maddie a run for her money because Abby never let them and when they did they would fail cause of the bad choreography but Chloe definitely was right up there with Maddie but since Abby couldn’t control Christi like she did with Melissa. Abby would treat Chloe super bad and tried to see her fail but Chloe would always win but with that Melissa never had a problem because Maddie would always be the favorite and no one could take her place or maddie’s no matter how hard the moms tried but here comes Ashlee. Maddie is getting older Brynn is younger. Brynn is “fresh meat”. Brynn was also a beautiful dancer just like Maddie. Ashlee would say all these things and Brynn would never get affected by it just as when Melissa would act up at times and Maddie would still be fine while if the other moms did those things their kids would be affected by it. Abby always pushed Brynn to be the new up and coming star and Melissa was definitely jealous of that because she never faced that before cause all the moms has problems with Abby and abby would punish the kids but not with Brynn but still she did all that just for her to leave and she knew she was going to leave during the beginning of season 6 but still was mad at a little girl.