THIS IS NOT TRUE! Why? Because not only is Bella definitely NOT ANYWHERE NEAR that cheerful she is devoid of any other emotion other than feeling sorry for herself, fawning over Edward, and being a complete and utter sociopath towards anyone that's not Jacob or Edward (not to mention she has super low self esteem issues) until the fourth book where she pretty much gets forced into having emotions because of her transformation, Kristen Stewart was truly an exceptional choice for the role of Bella.