Is Marceline off the show? I'm freaking out!

Okay, so I just finished watching season 4 episode 6, "Daddy's Little Monster," and I'm concerned about the part at the end where Marceline says to Finn, "I don't want to hang out with you anymore," and then that's basically the end of the episode. Is there any meaning to this statement? I haven't seen her in any episodes since. I really hope she's not off the show, she's one of my favorites! Please help me know if there's really anything to be worried about!