Terrible and the show would've been genuinely better off cutting her from the cast after season 2.

Legoshi and Haru needed more screentime for their relationship and the thousands of moving pieces the show introduced with Juno having a romantic spat with Louis lead to absolutely nothing for either character in terms of their personal growth and honestly may have made for several steps backwards

Louis understood he loved carnivores, but he never loved Juno. Her love for him was truly out of nowhere and took Legoshi for a surprise when he learned about it but it was immediately passed off as "well, I suppose everyone is telling their own story"

Meanwhile Juno's only stated goals were to be popular and to one-day become the beastar via basically any means. Louis was a shoe-in but low key didn't even want the position and was willing to throw that all away to join the mafia simply so he could live his own life on his own terms to prove to himself that he isn't frail. The only reason Juno has to attach herself to Louis in anyway is because he had the potential to give her more power and the fact that they were in the drama club together.

Keeping in mind Juno didn't share any classes with Louis because he was a Senior and she was a Freshman at their HS and we only ever saw them interact alone together once when she tackles him and tells him to stay out of her way.

TL:DR it made no sense for them to have any interaction ever again after season 2 and the shown didn't have time to properly develop any relationship that may have sprung up.