Yeah genuinely sad to see her go, she's a great character. They just didn't give her anything decent to do. It's odd how she just returned recently after an extended break only to be gone again, I wonder if there were behind the scenes issues?
They could have given her an actual friend to play with (preferably a female). I know the character was never typically a “girls girl” but imagine they paired her up with Cindy as unlikely pals.
Very disappointed Sam’s left, and so soon after her return from a temporary departure. She seemed to be pulling that case around Albert Square for ages that I thought something would happen to change her mind.

I suspect it won’t be too long before Kat goes back to Phil. And somehow I suspect it will take her longer to forgive Alfie for not telling her.