The post-war Britain has faced a lot of challenges politically, socially and economically. Undeniably, it was so difficult for the post-war generation to juxtapose and adapt with the new changes and conditions in the society due to the political considerations represented in the loss of GB for most of its 37 colonies around the world. In the literary strain and stance, new born changes and shifts have absolutely implemented. The familial ties have lost their purity and there was familial nostalgia for the loyalty and fidelity of the past decades. So, UK began to lose the divided colonies across the world since 1949 and particularly after WWII. As it was relying on the several sources from its colonies, the economic facet in the country began to decline and the compensation honestly was the unemployment, poverty, lack of contact and loss of morality and hence the appearance of angry young generation or youth as incarnated in Look Back in Anger (1956) by John Osborne. In the same strain, the class crisis was obviously the essential why behind the thwarting relationship between spouses as represented between Jimmy Porter and his wife Alison Porter. Thus, Jimmy Porter highly is evaluated as the angry young man who represents the pessimistic or disillusioned view for the post-war conditions. Hence, the current article is mainly shedding light on the decline of the British marital life as represented by the Porters.Keywords: Post-War Britain, Look Back in Anger, Matrimonial Sentiments, Kitchen-Sink Drama, Angry Young Man.