It does get easier over time …bu it WILL take a while.
My wife left me for someone else, and it completely cut me up. I unfortunately dropped into the bottle for 9 months, and I can tell you, it's not a good place to be.
The simplest way to end it is amicably, but that takes some reconciling. You're lucky in the sense that you don't have kids to complicate the breakup, but still make sure you have a decent solicitor so that you don't end being up thrown out of your own home.
Adjust your perspective. You're single, you're allowed to be selfish, and buy the foods, drinks and house products that you like.
Also, ride as much as you can, sign-up to a couple of races, this is the perfect opportunity to be in the best shape of your life.