Blue ram cichlid aggression to the other blue ram?

I have in one tank, two blue ram cichlids (one female, one male), five pristella tetras, a yoyo loach, clown pleco, and a male gourami.

The problem is, the male blue ram is chasing the female blue ram. I have had these fish for about two weeks. I mean all of the fish. All of them are still babies and still have some growing up to do. The blue rams have always stuck together. I know cichlids can be territorial so I have already suspected that a little battle would sprout for territory eventually. But the male blue ram allows all the other fish into it's territory except for the female blue ram. The female is shooed into the open area of the tank while he claims the entire area that is covered. Pretty much the whole back wall and left side of the tank is covered in plants, rocks and drift wood. If the female blue ram is chased, she looses all of her colors on her body (not fins), then the color slowly comes back and she tries again to go into the planted area.

This only started when I did a water change yesterday and I moved the decorations around. I have a 38 gallon long tank. (I don't know the exact dimensions but it is definitely longer then it is taller or wide).

So, will this aggression continue? Is my female blue ram's life in danger? Did my water change and decoration movement start this behavior? And what can I do for the female blue ram to feel secure?