When a married couple looks towards retirement, they hope to have achieved some degree of financial stability. With the children gone, they may sell the family home, and with the proceeds of that sale, buy something smaller and that they will own outright. This allows them to eliminate the mortgage payment and the hidden cost of interest payments on that mortgage.
Marriage is often said to be a journey. With many things, practice makes perfect, so you might expect with couples who have been married 15-, 20- or 30-years, that they would be unlikely to divorce after that amount of time, as they would have figured out how to maintain their relationship and their marriage.
Technology can do a great many amazing things. You can "face time" with a friend across town or in Europe or Asia. You can watch movies and television on your phone anywhere with a cell connection. You can post to your Facebook page and receive nearly instantaneous replies from people all over the world.
The next issue is how to cover the expense of buying out your spouse's interest. You may need to liquidate some assets to buy their interest or perhaps trade assets. For this, you want to make certain you have the assistance of the necessary legal, tax, and financial advisers to prevent mistakes and ensure you understand all of your costs for this transaction.