LOVE v/s NEED

This was one of the gTalk message status I found a bit confusing

Immature Love Says "I Love you because I need you"
Mature Love Says "I need you because I Love you"

It all depends on how the word "NEED" is defined.
Lets define Need based on scenarios and revisit the sentences again

Scenario 1: Need to get her/it [But the other person/thing is not
interested in me]
I Love you because I need to get you
I need to get you because I Love you

In this case both the sentences are Immature. The aim is to only get her/it no matter if its a Sacrificing or Possessive Love, the person is not interested in me.

Scenario 2: Need for completeness. i.e you are part of my life.
I Love you because you are part of my life
You are part of my life because I Love you

Think of a person who you love you the most [mother, father, partner, friends, pets .. anything]. You Love them because they give you the sense of completeness to you. You want them because they define you. Think if all the people/thing who you love goes away from you, you can't define yourself away from those. It doesn't mean that you stop loving if they go away from you OR they don't love you, you still love them....Lets term this as Sacrificing Love.
I Love you because of this sense. ...."I Love you because you are part of my life"
And because of this sense you give to me I Love you....."You are part of my life because I Love you"

In this case both the sentences are Mature. The aim is to Love no matter what happens. I get her or not she will always give the sense of completeness to me.

So after a week of juggling on this topic I have came to the conclusion that both LOVE and NEED are dependent. If one of them, i.e either Love is possessive or Need is towards only getting then it falls under Scenario 1. And if the Love is Sacrificing and Need is for good purpose then it fall under the category of Scenario2