These four ingredients can be used in every sort of relationship.If u want them to be longg lasting..

They are as follows...

1) Trust

You have to trust the person with whom u want to have relationship

2) Respect

You should respect each other.

3) Compromise


The two of you must compromise in different matters

4) Patience

The important one..both of you should remain patient and take decisions after a deep thinking on every matter