My wedding vows to Helen.
Dear Helen, matrimony is a holy thing, so I will never break it. I will never enjoy even a smidgen of the pleasure of looking at another woman or thinking of one.
Everything I do will be for your benefit. Every second of my work I will work for you. I will suffer through all that we go through, with you at my side.
I will never complain when you are there. I will take with a smile all the pain and sorrow life with you will hurl at me. I will bite my tongue against the agony, and when death comes in the end, I will greet him as a friend and go gladly.
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Update: This was written very quickly in an inspiration after hearing using "marriage" and "death" in the same sentence in a weird way, or something. It was probably very late, and it seemed very funny to me when I wrote it. :-)