What really helps for me is to fall asleep to wonderful music, listen to podcasts throughout the day, and keep busy with things that interest me. It's also good to take some time away from the Internet and dedicate it to reading a book. YMMV on that one, though, because if the absence of your wife crushes you, it seems extreme to also cut yourself off from the Internet. But sometimes it makes it easier when you deliberately seek out solitude.