When a relationship goes more than 1 + 1 = 2

Recently been addicted to a Hongkie drama, 谈情说案 The Mysteries Of Love. It is basically a story about cops and relationship. To be honest, crime dramas been a favourite of mine eversince forever. Anyway, the main relationship in this drama is a guy, named KINGSLEY, who was born in a rich family, an professional graduate from Cambrige University. Whereas the girl, SI-LI-MUI is from an average family, yet to complete her degree, working as a CID. Intially, each of them will never choose either self to be their another half. However, after facing many octsacles together, they developed "chemistry".

However, things do not always flow well. As a relationship does not always "1 + 1 =  2". Although these two families already knew each other since a long time, where both families' great-grand parents worked together to remove a criminal. However, due to the belief that the poors are always greedy. Thus, Kingsley's family members do not agree with this relationship, leading to this couple faced many difficulties and pressures.

For SI-LI-MUI, as she grown up in a warm family, she is a warm and kind-hearted girl. Her family members had been supportive towards this couple relationship. However, as the equation does not stand. Hence, unhappiness were being developed among her family members after times. Thus, in order to resolve the problem, SI-LI-MUI, decided to give up her ideal job of being an CID officer, to an interpersonal department (i.e. a 9-5 white collar employee). Getting the knowledge of this, Kingsley was upset, believing that he will not be the one who is able to give SI-LI-MUI happiness. In addition to this, an accident faced by his mother, even further push Kingsley to make a decision. Hence, leading to the breakage of relationship between this couple.

P.S. If you were to be in this position, how would you resolve it? To be honest, I faced this before, and... The end result was the same.... However, this was faced at the young age. If I were to have this problem again, I wouldn't know what to do either. After all, family members' opinion are very important too. As a couple being together is "1 + 1 = 2", but it aint equal to 2 person, its 2 families. Therefore, it is normally hard to make decision when more than 2 person involved.