After Andy finds out that Fluttershy's romantic interest is a mare abuser with ill intentions, he offers his shoulder to Fluttershy in her time of need. However, when he comforts her, Fluttershy takes notice of Andy's strange and evasive behaviour, which makes the timid mare feel concerned for him, knowing that something is bothering him greatly.
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Cover Art Credit - https://www.deviantart.com/shutterflyeqd/art/The-Stare-of-Affection-730749186