This is my translation of the scene as depicted in NieR Replicant (February 21, 2015).

Emil: Ah……
Nier: What’s wrong?
Emil: Nothing……eheheh. I just can’t sleep.
Nier: Are you worried about something?
Emil: N-no, nothing like that. I’m just really excited about tomorrow―wide awake, imagining what it will be like……
Nier: Maybe you’re thinking, ‘It’ll be so wonderful. It’ll be so beautiful.’
Emil: I’m so envious. Fyra, I’m so jealous.
Nier: Don’t worry. I’m sure someday you’ll meet the right girl to be your bride.
Emil: My bride? ……Oh, a bride…?
Weiss: What else is there? You must be tired. Hurry up and get some sleep.