Why are women so defensive about their facebook use (please read the details of the question)?

[Matthew]

People, not just women, want attention. They post whatever is on their minds at the moment without giving any thought to what could happen when strangers read those posts.

She's getting defensive because no one wants to be told what to do. She had problems, so she's turning to Facebook to feel less lonely. It probably makes her feel better about herself when she sees all of her "friends" on her list.

Don't constantly harass her or she will cut you out of her life. If she does that, you won't be there if she needs you.