Group roleplays seems to be more understanding of this scenario but in one-on-one's? Oh boy.

"If you're not longer interested in the roleplay, please let me know! Don't flake out and disappear without a word. It's rude to leave me hanging. [b]I won't hold it against you.[/b]"

>Person lets partner know they are withdrawing for their roleplay.
>Partner passive aggressively rants about it on status updates or threads like these.

Okay.