"I don't want you thinking I'm unhappy"

I sometimes have the feeling you've been here a long time, more than one lifetime, and that you've dwelt in private places none of the rest of us has even dreamed about.

As much as I want you and want to be with you and part of you, I can't tear myself away from the realness of my responsibilities. If you force me, physically or mentally, to go with you, as I said earlier, I cannot fight that. I don't have the strength, given my feelings for you. In spite of what I said about not taking the road away from you, I'd go because of my own selfish wanting of you. But please don't make me. Don't make me give this up, my responsibilities. I cannot do that and live with the thought of it. If I did leave now, those thoughts would turn me into something other than the woman you have come to love.

(Robert James Waller - The Bridges of Madison County)

"Look into my eyes - do you love each other?"

LYSANDER

Or, if there were a sympathy in choice,

War, death, or sickness did lay siege to it,

Making it momentary as a sound,

Swift as a shadow, short as any dream;

Brief as the lightning in the collied night,

That, in a spleen, unfolds both heaven and earth,

And ere a man hath power to say 'Behold!'

The jaws of darkness do devour it up:

So quick bright things come to confusion.

HERMIA

If then true lovers have been ever cross'd,

It stands as an edict in destiny:

Then let us teach our trial patience,

Because it is a customary cross,

As due to love as thoughts and dreams and sighs,

Wishes and tears, poor fancy's followers.

(William Shakespeare - Midsummer Night's Dream)

death won't do us part

I’ll have her in my arms again! If she be cold, I’ll think it is this north wind that chills me; and if she be motionless, it is sleep.” I got a spade from the tool-house, and began to delve with all my might—it scraped the coffin; I fell to work with my hands; the wood commenced cracking about the screws; I was on the point of attaining my object, when it seemed that I heard a sigh from some one above, close at the edge of the grave, and bending down. “If I can only get this off,” I muttered, “I wish they may shovel in the earth over us both!” and I wrenched at it more desperately still. There was another sigh, close at my ear. I appeared to feel the warm breath of it displacing the sleet-laden wind. I knew no living thing in flesh and blood was by; but, as certainly as you perceive the approach to some substantial body in the dark, though it cannot be discerned, so certainly I felt that Cathy was there: not under me, but on the earth. A sudden sense of relief flowed from my heart through every limb. I relinquished my labour of agony, and turned consoled at once: unspeakably consoled. Her presence was with me: it remained while I re-filled the grave, and led me home. You may laugh, if you will; but I was sure I should see her there. I was sure she was with me, and I could not help talking to her. Having reached the Heights, I rushed eagerly to the door. It was fastened; and, I remember, that accursed Earnshaw and my wife opposed my entrance. I remember stopping to kick the breath out of him, and then hurrying up-stairs, to my room and hers. I looked round impatiently—I felt her by me—I could almost see her, and yet I could not! And when I slept in her chamber—I was beaten out of that. I couldn’t lie there; for the moment I closed my eyes, she was either outside the window, or sliding back the panels, or entering the room, or even resting her darling head on the same pillow as she did when a child; and I must open my lids to see. And so I opened and closed them a hundred times a night—to be always disappointed! It racked me! I’ve often groaned aloud, till that old rascal Joseph no doubt believed that my conscience was playing the fiend inside of me. Now, since I’ve seen her, I’m pacified—a little. It was a strange way of killing: not by inches, but by fractions of hairbreadths, to beguile me with the spectre of a hope through eighteen years!
(Emily Brontë - Wuthering Heights)

"... or says so the legend"

Not my original idea, but I don't think any love can't get more beautiful than this.