'I love you because I need you' vs 'I need you because I love you'

[Kawaii_Gurl071801]

There`s something I really want to know about...

I`ve heard this line several times already especially in movies...When someone asks about how do you feel toward them by giving out this kind of question, what would you choose?

a. I love you because I need you
b. I need you because I love you

please let me know your views and tell me the difference between the two.

[Mister Micawber]

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Both are grammatically correct and commonly used. That is all I am prepared to say.
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Native English teacher at Mister Micawber's

[Kawaii_Gurl071801]

Thanks so much for the explanation. I thought there was a deeper meaning to it. =)

[Pljuchik]

They just show two diferrent characters,attitudes towards each other,I think there isn't more difference between them.