I have this friend on facebook who drives me crazy....?

She is my dad's ex's daughter. She's 20 years old, and just had a baby. The father of her newborn son just turned 17! Anyhow, all she does is change her status everytime her bf makes her angry, when she's tired, what she's doing, what she's wearing, who she's with etc....which is several times 15+ a day. everyone sympathizes for her leaving many hopeful messages like "oh honey i love u..." she uses facebook as a shrink session and im tired of reading it... ive changed my settings to leave her out of my newsfeed.. but why in the world do people do this? do they expect me to tell them something positive or the truth?