question about kyph

the serial name is "kaisa yeh pyar hai".There is three ways which I know to show the pyar

1.They show in the serial before that they fight each other and angads jelousy towards prithvy,kripa jelousy towards angads diwani girls.The slow song coming 'kaisa yeh pyar hai'.

2.They love eachother and ekta can show that'they love each other and dont care about people.It can show the pyar.

3.They sacrifice for the eachother.It also show the pyar but make the misunderstanding between the lovers and If they belive on that Its not show the pyar.What you guys think?

Can you guys tell me which is the fourth way to show that"kaisa yeh pyar hai".Otherwise I dont think there is any other way to show the pyar or It suits with the name.