Vindictive
Neo-King Endymion stared down at the still form of his wife, encased in her quartz shell. It had been nearly two months since the Senshi had sealed her there for her own protection. Two months since he had last held his wife. How he missed her! He didn't even have his daughter to comfort him, because she had been sent to the past.
Ah, the past. The place where Chiba Mamoru was free to hold Tsukino Usagi anytime he pleased. Not to mention Rini!
Endymion sighed heavily as he strolled through the gates of Time. Staring into Setsuna's crystal ball, he snarled. Look at them! His past self, holding hands with Rini and embracing his wife (then girlfriend). How happy they seemed.
Upon seeing this, the Neo-King grew angry. Not at Usagi, for he could never begrudge her anything that made her happy; but at himself. He couldn't believe how much he had taken his wife for granted! For even now, Mamoru had let go – let go! – of Usagi to pick Rini up. This he would not bear! Usagi was not be let go of, but to be cherished forever If Chiba Mamoru would not love Usagi as she deserved, then Endymion refused to let him love her at all.
It was with this thought in mind that Endymion began to weave a spell to plague Chiba Mamoru, to warn him away from Usagi lest she be hurt.
It was without a doubt that the Neo-King was feeling vindictive. And later, when Chiba Mamoru woke himself screaming from nightmares that threatened to hurt his love, the Neo-King rejoiced in the knowledge that his past self was without Usagi as well.