Sonnet 116, by NY Shakespeare Exchange

Let me not to the marriage of true minds
Admit impediments. Love is not love
Which alters when it alteration finds,
Or bends with the remover to remove:
O, no! it is an ever-fixed mark,
That looks on tempests and is never shaken;
It is the star to every wandering bark,
Whose worth's unknown, although his height be taken.
Love's not Time's fool, though rosy lips and cheeks
Within his bending sickle's compass come;
Love alters not with his brief hours and weeks,
But bears it out even to the edge of doom.
     If this be error and upon me proved,
     I never writ, nor no man ever loved.

Sonnet 116, from The Sonnet Project, by the New York Shakespeare Exchange.

Although in former times this sonnet was almost universally read as a paean to ideal and eternal love, with which all readers could easily identify, adding their own dream of perfection to what they found within it, modern criticism makes it possible to look beneath the idealism and to see some hints of a world which is perhaps slightly more disturbed than the poet pretends. In the first place it is important to see that the sonnet belongs in this place, sandwiched between three which discuss the philosophical question of how love deceives both eye and mind and judgement, and is then followed by four others which attempt to excuse the poet's own unfaithfulness and betrayal of the beloved. Set in such a context it does of course make it appear even more like a battered sea-mark which nevetheless rises above the waves of destruction, for it confronts all the vicissitudes that have afflicted the course of the love described in these sonnets, and declares that, in the final analysis, they are of no account.

This analysis from Shakespeare's Sonnets makes sense to me, but I don't fully agree with it.  Less about ideal or eternal love, this sonnet seems more about endurance, and patience, and determination.  The speaker does seem to have done wrong to her beloved, and this is an impediment she dare not admit.  But while she is not perfect, and neither is her love, her willingness to stick it out with her chosen partner is nothing short of laudable: She bears it out even to the edge of doom.  Quite well-acted and recited by Virginia Donohoe.