Everybody did experienced when they are placed in a situation where they have to choose one thing over the other. It is easy if one thing is good and the other is.. not so good. You'll probably choose the good one over the other. But what if both things are good? What determines your decision to choose one over the other?
Pros and cons - that's what people always do. Choose the one that is better than the other. This is easy with things; choosing a diamond ring over a gold one (if the person loves diamond more than gold), a cheap pirated cd over expensive original cd (prices and money determines one's choices).
But what if the way you act is the one that you have to choose? This is the hardest part for me i guess because it involves the heart and usually heart works the other way round than what your mind says. :P
To follow what your friend said or not... to leave someone you love or not... etc2.. These things requires mind strength. Because what you decide might seem okay to your mind but rather killing the heart, or the other way round. I can't say stick with your decision even if it kills you because sincerely, i don't think i'm able to do that and "kill" myself. I guess you just have to go with the flow and see what happens. Things changes and SOMETIMES your decision must change too.
Or people would say follow your instinct. Follow your heart. Coz maybe it'll lead to happiness or ease of heart and you'll get your peace of mind..