Quoting: Ranj
If they are not together it doesn't necessarily mean their love isn't true.
If they love each other, then why will they not want to be together?
If their love is pure, then I believe it is true love.
When making bubbles...many of them blow up before even being a bubble... only those survive which can handle all its dimensions, to all the attributes of the atmosphere.
I believe that true love can only occur once. Because the light of God is one... and all the rays within are found only one of their kind and unique. Taking this clue for nature (like a spectrum), we can try to conceive the meaning of love.
God is the unltimate and eternal love. The love between a man and a woman is one of the ray (in my suggestion, it resembles the Red Ray)... this ray is only one, powerful and pure. It is also eternal.
Love is never a nonsence...and life has no end. If we think with the material perspective, then we will find incomplete answers. A complete human is made up of the material and spiritual.
To have love in the heart, I think, we must first purify the heart. In a pure heart, the light of God decends... in that light is hidden, the peace and joy of all the worlds

. Love being one of the most beautiful gifts, and an important attribute of God. Love without boundaries, without the barrier of religion-race or region.
Regarding some people, who love the someone whole heartedly, and find failure: I would say, 'Maybe this love wasn't true' (my personal opinion). If you loved the person, and she didnt care for your love, or left you for anyone esle (or any other reason she felt more important)... then how come she was the right choice?
A pure heart, which REALISES and RECOGNISES love will only go towards another TRUE HEART. A heart that is also pure, a heart that knows the value of love. A heart that satisfies and completes you and your being.
It should fit in, in the most simple and logical way. She might not be the worlds most beautiful woman... but physical beauty have never truly been the component of true love. Neither in the man, nor in the woman's case.
All my words might seem too complicated. But its not actually.
I read one book, so I will share the story in brief

:
There was a very rich and wise man...but he could never get sleep. He tried all books, medicines, phsycriatists, doctors....but only had dissappointment. No sleep.
Oneday he saw a poor old labour, sleeping under a tree using a brick as his pillow. Such sleep the rich man never had even on his most luxurious cussioned bed! The rich man was shocked, surprised!
Next day he asked the labour for the secret of his sleep. The labour replied, 'It comes through the a peaceful heart...the logic behind it is as simple as my sleep. And your logic behind sleep is as simple as your sleep.'
So I guess... just relax...and trust in the eternal light... PEACE always takes birth in the ARMS OF MARY.

... remember this.