It's not just what you said, it's how it came across. I know people trade in looks for health all the time. But to say "I'd rather be pretty than mentally stable" I'm sorry, to me that is really conceited and just so arrogant. Mental health, or missing an arm or a leg is not something people choose to have or not have. It's NOT like choosing to go tanning or to restrict yourself to 500 calories a day. It portrays everything that is wrong with society: nothing matters as long as your skinny and pretty. It doesn't matter WHO you are, what is behind that oh so pretty face. That is what's wrong with your statement.
You're whole argument that a woman is only a "real" woman when she does this and this or doesn't do certain things - again, you and your mindset are part of the problem.
Your statement that women are so catty and you'd rather hang out with the boys - again, that makes you part of the problem.
Society is so twisted when it comes to women and I have no tolerance for someone, ESPECIALLY, a woman to contribute to this bs.