Relationship- Made FOR each other OR Made BY each other??

Relationships are like SIP's (Systematic Investment Plan )  . 

I call it Sustained Investment Preference:

Ask Yourself:
1. What do you prefer in your relationship?-Happiness,Compatibility(matching wavelength),Growth(I am refering to mental growth as physical will happen- No choice there :-) or anything that you prefer).

2.Invest in your preference.

3. Be consistent so that the investment will be sustained.