Well, it's not beyond comprehension.
You have one dude who has maintained a 30-year fictitious storyline about his gambling history and overall life arc. Another dude, also with a 30-year storyline about his gambling history and life arc, becomes friends with him. Presumably they might tell each other some truths.
Person A is on the verge of having the storyline go up in flames. Person B gets nervous. Figure it out.