Ult!Jean dumped Ult!Logan for Ult!Scott, then pulled an DoX/IvX!Emma when Ult!Scott was assassinated.
Now that I think of it, I suppose 616!Emma pulled an Ult!Jean?
Edit: having said all that, Ult!Cyke was a whiny manbaby at the start, and was an impotent manbaby when he died, so there...