How can I illustrate our financial position to a spouse who shows little interest?

Use simple visuals your spouse can glance at — one‑page monthly snapshots like income vs. expenses bars, a pie chart of asset allocation, or brokerage/Portfolio X‑Ray images (Morningstar, Schwab, Vanguard) so numbers feel less intimidating.
Create a single‑page mind map and an annual net‑worth spreadsheet (and even a “Doomsday Book” binder) that show who owns what, key accounts, and next steps — great for quick conversations and yearly check‑ins.
If needed, bring in a trusted CFP‑level adviser to walk you both through the plan, keep your spouse engaged, and provide continuity if circumstances change.