It's all bullshit beginning to end, but she had to throw one real one in: height definitely does matter.
Every 5'0 midget girl feels entitled to a guy who is at least 6'1. Because her height doesn't matter, yours does.
Remember msgivings' precious tip here fellas - always be attractive, never be unattractive. Advice like this is easily worth $20k any day, you just have to be positive and really take it to heart.