Studies show that the 4-5 year age gap provides the most stable relationship. Gaps more than 8 to 10 years show higher disillusionment, quarrels and disturbed interpersonal relationships, leading to separation and divorce Bigger age gaps might have worked well for some, but cannot generalise.

Is 5 years too much of an age difference?

After analysing 3,000 people, it found that couples with a five-year age gap are 18 per cent more likely to split up than those of the same age. Interestingly, that figure rose to 39 per cent for couples with a 10-year age gap and a shocking 95 per cent for those with a 20-year age gao.