Achilles Tatius, Leucippe and Clitophon 6.18.2-3
καρτερήσας δ’ οὖν καὶ παρακαθίσας διελέγετο, ἄλλοτε ἄλλα ῥήματα συνάπτων οὐκ ἔχοντα νοῦν. τοιοῦτοι γὰρ οἱ ἐρῶντες, ὅταν πρὸς τὰς ἐρωμένας ζητήσωσι λαλεῖν· οὐ γὰρ ἐπιστήσαντες τὸν λογισμὸν τοῖς λόγοις, ἀλλὰ τὴν ψυχὴν εἰς τὸ ἐρώμενον ἔχοντες, τῇ γλώττῃ μόνον χωρὶς ἡνιόχου τοῦ λογισμοῦ λαλοῦσιν.
So he exercised self-restraint, sat down by her side and conversed with her, stringing together at different moments different subjects which had no sense to them. For this is what lovers are like whenever they seek to chat with those they love. They put no logic in control of their words, but direct their whole soul towards the beloved; with their tongue alone they chatter away without reason holding the reins.