This one hits different; the hand writing is very similar to my late father's, aside from the squigglyness of it. Though in the latter months of his life it gained that feature as well.
The moon is about 238855 miles from earth. Lets assume you start at the equator and walk aboht 2 miles an hour. You would walk for 119427.5 hours to get to the moon. Thats equal to 13.6 years. He has loved her for less than 14 years.
only half a million miles to walk. At an average walking speed of 2.8 mph, that's only about 20 years of non-stop walking. 30 if you decide you stop to sleep 8 hours a day.
Better get started then, no time to lose.
Ps: remember that the moon might not be in the same place in 30 years. A map would be outdated by the time you arrive.