A "boyfriend" or "girlfriend" refers to a person with whom someone is romantically involved. This relationship typically involves emotional attachment, companionship, and mutual affection. People in these roles often spend time together, share experiences, and support each other in various aspects of life. The terms are commonly used among young adults and teenagers, but they can apply to individuals of any age. A boyfriend or girlfriend may also engage in activities like dating, going out to eat, or attending events together. These relationships can vary in seriousness, from casual dating to more committed partnerships.