Tolerance has to run both ways

I have a friend on Facebook who is an ardent Republican, and often posts links to video and editorials critical of President Obama. I must take a deep breath whenever I see them: I don't want to un-friend her, and if I were posting lots of links in support of the President I wouldn't want her to un-friend me on account of them. If I demand tolerance and openmindedness, I mustn't be a hypocrite. But it's haaaaaarrrrdd!