Caring for each other and not running away from difficulties: I think that's what really matters. Most of young people seem to seek passion and desire, though. But this fades sooner or later.

difination----->difinition

My two cents, Love bases on believing, respecting, truth, each other. Love is to loved by other. When you love by your heart and your soul, I think your love is never died.

I totally agree with Michael 's opinion. There is not any perfect definition for all love., 

difination-->definition

Love......it is a mutual  respect and feeling for a  couple in love....caring, honesty, trust,loyalty for your love ones. faitfulness , trust and intimacy. nationalism for your love of country .

........... it is giving especial  loving tender care to the one you love.

...........  it is nurturing one another .

...........  it is giving sacrifice and responsibilty.

............ it is giving and recieving.

............ understanding the best and worst of your partner.

............ accepting your partners attitude good and bad.

............  giving unconditionally inspite of...