I was watching legacies and Kym just came out of nowhere, for no reason, even Nia's entry seemed a little natural and she was sent to harm them. It felt lie kym was just written to fill in the gap while mg goes back and forth on his crush on Lizzie. And then there was this internship thing going on which also came out of nowhere just to add more drama, just Alyssa would have been enough drama if they wanted to add another girl in the mix. (Lizzie and MG)
And Lizzie deserves so much better. I know mg knows her and gets her and all that but he's a little too quick to jump on his next crush and put Lizzie on hold and Lizzie doesn't deserve that after everything she's been through.