Eomer was not a man of any certain pattern. At times he was rough and gruff, very distant from the emotions of others. At other times, he was truly a man. He could stand as tall as Meduseld, and yet cower like a small child, whether others could see it or not. He could fight like a beast; yet grieve like a woman losing her husband. He reveled in his unpredictability and used it to his advantage when protecting his beloved Rohan, though he truly wasn't protecting the land. He was protecting Eowyn.
Eomer had been abandoned by his parents. Some may say they could not control their deaths, but that is beside the point. He was left in the world with a decaying uncle and a sister to shield from slimy worms and those who would harm her, but in his efforts, he failed miserably. She became as cold and hard as a stone in the wintertime. He watched her retreat into herself and he longed to hold her close and not let anything harm her, but being thrown out of Meduseld did not help matters.
Eomer was a soldier, but at heart, he was simply a man stretching himself over all those he loved. He was exhausted, and only a certain maiden from Dol Amroth could heal all grievances. Did he expect it? Of course not. He hardly wanted her help, but she quickly beat him into submission. I suppose men are at their best when they are husbands, under the loving care and control of a beautiful wife.