Let's do a calculation. For example, in the first year, it is 100%, and then it will decrease 10% every year. Four years is 60%, of which quarreling is inevitable, at least reduced by 5%, and now it is 55%. If it is in different cities, it is 50%. If it is in the same city, it is 55%. Then it is inevitable to find a job and have sex with other boys. If it is 10%, 40% in a different place and 45% in the same city, and then you can't get married immediately, you will get a 65 in 8+0 to 2 years, even if it is 15% in a different place, 25% in the same city and finally 30%, if you work well and work badly, it will be reduced by at least 15% in a different place.