We did not see that coming, but possibly we must have.  Right after weeks of telling us Alex was visiting his mother in Iowa and then eventually revealing that he experienced never been in Iowa at all, this week’s episode presented some significant closure for both Alex and another surprise, prolonged-absent character from Grey’s Anatomy previous.  Generally, Alex was with Izzie (Katherine Heigl). He identified out that just after she just kind of remaining all those people a long time back, she experienced been increasing his twin son and daughter on your own and never told him. She experienced used…