During the era of Tunku Abdul Rahman, just like a newly-wed couple, the two countries were originally passionately in love. Unfortunately, the happiness was short-lived, with the marriage turning sour and ending in a divorce.
During the eras of Tun Abdul Razak and Tun Hussein Onn, each country lived its our own life, minding its own affairs, with little interactions. The bilateral relations increasingly became lukewarm. Full Story