Personally, this situation sounds all too familiar and I get the feeling you've expressed yourself to your friend LOTS of times before. Honestly, I feel like you need to relax and just get over it. So you find it annoying, big deal, she's going to do what she wants, regardless of the advice of others. If it gets too much to deal with (for you), maybe you guys shouldn't be quite as close friends and just let yourself have some space.

Don't hang on to a level of closeness in a friendship or the expectancy that you need to hear out every little problem your friend has. Otherwise (if you're unwilling to part ways with her slightly), just learn to not get so worked up over her problems.

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