Hah! There is no such thing. Emos are always miserable, otherwise they shouldn't call themselves emos. The whole emo philosophy is to be permanently depressed in order to get attention. Stupid brats.
Therefore, the isn't any such thing as a happy emo, because that would be breaking strict emo rules - and you wouldn't want to do that; you'd only make them cry even more
Emo: *cry* ...hi...I guess
Me: so you're an emo now are you?!
Me: fucking trend follower