Man, Charlotte Susan's exit hit me hard—I was totally invested in her character! From what I gathered behind the scenes, there were rumblings about creative differences with the showrunners. Some fans speculated her storyline was getting trimmed due to budget cuts, but honestly, it felt more like her arc just... ran its course. The writers had this habit of introducing fascinating side characters only to drop them abruptly (remember that chef subplot in Season 2?).
What really stung was how they wrote her off—some vague 'moving abroad' excuse that didn't even get a proper farewell scene. I binge-watched her indie film 'Glass Echoes' afterwards though, and wow, her range makes you wish they'd given her more to work with on the show. Still bugs me how they never revisited her unfinished business with the protagonist.