Wow. A whole thread full of good suggestions -- particularly the fava beans and a nice chianti.
Are you a Star Trek fan? Remember how Data defines friendship? Eventually, his neurotransmitters get used to a person's input. That input is anticipated, even missed when absent. Of course, there's a bunch of chemicals and shit involved in it with us, but it's ultimately the same thing.
Instead of trying to not think about the elephant in the living room, go find yourself a hot new elephant that you're not planning on moving in with you, or do somethign to treat yourself, or move somewhere without an elephant in the living room -- whatever you do, though, do it for you, for your future, and to live.
You'll grieve whatever loss you're having for a full set of seasons, if it's a long term something-or-other, and you'll spend multiple repititions making new habits if it's a newer thing. Either way, the only answer is to move on with your life and the only way out is through.
