Bella wears her engagement ring on her right hand because the engagement ring Edward gave her has a large oval shape, which makes it uncomfortable to wear alongside her wedding band. Therefore, she wears her wedding band on the left hand and the engagement ring on the right hand. Additionally, in some cultures, it's customary to wear engagement or wedding rings on the right hand, and rings on the right hand can symbolize loyalty, independence, and cultural traditions. Bella's ring-wearing habit likely reflects a combination of practical reasons (due to the ring design) and possibly cultural or symbolic reasons associated with wearing rings on the right hand.
