Philostratus, Love Letters 2 (Kayser)
Philostratus also wrote fictional letters. This one is short but quite sweet.
πέπομφά σοι στέφανον ῥόδων, οὐ σὲ τιμῶν, καὶ τοῦτο μὲν γάρ, ἀλλ’ αὐτοῖς τι χαριζόμενος τοῖς ῥόδοις, ἵνα μὴ μαρανθῇ.
I’ve sent you a garland of roses, not to do you honour (although I would do that), but to pay the roses themselves a favour, so that they won’t wither.