Which sentences in this excerpt from f. scott fitzgerald's "winter dreams" reflect dexter’s heartlessness? it was strange that neither when it was over nor a long time afterward did he regret that night. looking at it from the perspective of ten years, the fact that judy's flare for him endured just one month seemed of little importance. nor did it matter that by his yielding he subjected himself to a deeper agony in the end and gave serious hurt to irene scheerer and to irene's parents, who had befriended him. there was nothing sufficiently pictorial about irene's grief to stamp itself on his mind.

The sentences in this excerpt from F. Scott Fitzgerald's "Winter Dreams" that reflect Dexter’s heartlessness are " It was strange that neither when it was over nor a long time afterward did he regret that night" and "There was nothing sufficiently pictorial about Irene's grief to stamp itself on his mind"

Explanation:

These sentences show how insensitive he is, and how little the feelings of others can affect him, the keywords to define this are "nor, did, regret" and "nothing about Irene's grief to stamp on his mind", these words demonstrate a personality that is unable to empathize with others. He can not create any kind of emotional connection.

the answer is the second one.

synonymous.

he was ashamed of himself