Yellows and oranges could use that, too. I thought something a little more lighthearted would probably be good for your situation.

[Which was precisely why she didn't offer anything overly romantic. A good call on her part, though to be honest Aerith wasn't the most romantic person intentionally and more often than not tried to avoid getting too involved with such things.

Hopefully no one would come to her for advice of that nature.]

I agree that the yellow might be the best option. It's cheerful, sunny, radiant. A good 'happy' colour.