He doesn't ask, but he wants to, and Héctor answers him anyway. Maybe unexpectedly, rather than make another rude comment, something about how he was screwing Dodger before he ever knew his wife had left him, Squalo instead goes quiet for a moment, contemplating. They have some things in common, but some are different. He doesn't particularly mind hurting Xanxus, for example, and he still holds out hope that he hadn't actually decided he didn't want him anymore. But it did still break his heart, and he feels stupid for being so torn about attempting to live on without him. He deserved that much, didn't he? Especially if that bastard wasn't going to show his face in Hell again.

"How do you do it?" he finally asks, frowning a little, not quite looking at the other man. "Don't you feel like you're betraying her with every breath you take without her?"

It's not a slight, not an accusation. He's asking, because that's how he feels, regardless of his wishes, and he's looking for some kind of guidance, no matter how poor it may be. He knows Héctor isn't some sort of a life expert, but he thinks there's enough similarities in their situations that he might understand.