I found a great article and exercise about How to Get Along with People You Don’t Like (And Make Your Life More Peaceful in the Process).
In a nutshell, Brian Vaszily explains the importance of identifying the people who we dislike or make us feel anything but fabulous (not usually hard to find). Then to dig for something, anything, that is of a positive nature in them. Something worth emulating. And then to focus on those qualities. Of course, this is not to say we should put ourselves in harms way by being in a hostile relationship, but to give us a chance to find peace in those relationships that seem to wrap themselves around us.
As Wayne Dyer says, "Loving people live in a loving world. Hostile people live in a hostile world. Same world."
Enjoy Brian Vaszily's article at IntenseExperiences.com
This is another great time to mention Bryon Katie's Work, which is another incredibly powerful way to help deal with people you don't like or can't stand. Katie has an amazing process of turning our suffering into joy. Check out her work at: www.thework.com