"I've never been seriously involved with anyone. I've certainly never been in love. I've always preferred to keep things casual"

Rupert Grint's quote recommends that he has actually never remained in a committed relationship or knowledgeable love. He chooses to keep things casual, which might mean that he is not searching for a major relationship or is not ready to dedicate to one. It might also mean that he is not interested in the idea of love and prefers to keep things light and fun. This could be due to a fear of dedication or an absence of interest in a serious relationship. It might also be due to the fact that he is too hectic with his profession and does not have the time or energy to purchase a major relationship. Whatever the factor, it is clear that Rupert Grint prefers to keep things casual and has actually never ever been in love.