For those who are in love:
It's not all about the good times but also on how you face the bad times together, stay in love and take care of each other.
For those who still in love with their ex:
If there's still a chance and it's worth fighting for, set aside your pride and make a move. If there's someone involve, move on.
For those who in a long distance:
Trust each other, believe in the relationship that you have and keep the communication.
For those who single:
Don't rush things, you'll find it soon.