A bromance is a very close and non-sexual relationship between two or more men. It is an exceptionally tight, affectional, homosocial male bonding relationship exceeding that of usual friendship, and is distinguished from normal friendship by a particularly high level of emotional intimacy. The emergence of the concept since the beginning of the 21st century has been seen as reflecting a change in societal perception and interest in the theme, with an increasing openness of Western society in the 21st century to reconsider exclusivity constraints.