And I wonder how they should have been together!
I should have lost a gesture and a pose.
The narrator has second thoughts. Instead of having these lovers break up in a perfect, idealised way, maybe it would have been better to let them get it on. After all, what does he care? This troubles him.
At first, he thinks in the third person, “they,” but he is still personally involved because he is really wondering how he himself would have been with her.
Next, he switches back to the perspective of the aesthete: he would have missed the beautiful image of her clasping her flowers to her with a pained surprise.
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