Title for the one person who cries and whines about a particular situation (dramatic or otherwise) in which multiple individuals are affected while all other individuals involved manage to deal with the situation.
Conversely, the title for the last person to continue to cry or whine about a situation when everyone else has moved on.
Joe to Nancy: "All of us have been stuck on this bus waiting for it to be fixed. Stop being The Crylander and deal with it."
Bill to Sadie: "Sorry our dog died 6 months ago but there's no reason to be The Crylander about it. Move on."