The reveal is held to the last line, and nothing relieves it early
The opening line does not ask the real question — it asks permission to ask one: «Can I ask an old sea dog for advice?» And every line after it raises the price without naming the goods: a compliment that is really a joke about three marriages, a cleared throat, and one whole line for the father, «Go on, then.» The business arrives in the final position: «I'm considering leaving Margareth.»
Why it works: two mechanisms are stacked. The dialogue is oblique — this is Sol Stein's indirection: direct exchanges kill a scene, talking around the point powers it, because a reader who must assemble what is unsaid presses harder than one being told. And the charged thing lands at the end, in what Strunk called the emphatic position — the place in a sentence, and by extension a scene, where weight naturally falls. Every line before the last one becomes fuse. A first draft that does both by instinct should protect this shape through every revision.