Hi SoccerGuy--
You're lonely, and Iceland just trashed England in Euro 2016. Bad all around.
Okay, I'm kidding...but your user name IS "SoccerGuy"...
Back to the serious stuff: my Mum died in 2009 after a four-year decline due to dementia. It was heartbreaking in a way that was much worse than my first wife dying of cancer.
Tonight, my wife is in another room, not talking to me, not one word. But that's okay: I went out to dinner with some friends without her, she never asked where I was going, who I was with, what they said about her, she never had the opportunity to wax poetic about their collective and individual faults and failings. It's great. I kind of like it this way.
The kids went away to camp, so last night it was just me and my silent wife. THAT got pretty lonely and it sucked. But there are things I can do: I can peruse the boards here, I can watch youtube on my iPhone, I can email a friend or two that I have left, I can email my kids at camp, I can think about them, wonder what they're up to, I can go to sleep.
Beyond that, I'm pretty clueless about how not to feel lonely: I think it just sucks and humans weren't wired to be alone when they don't want to be.