Tangent on Love

[fromcancertocapricorn]

On blank canvas one point passed
by a circle along a straight path.
And a circle could wish with all his might  
that a tangent could stick around despite  
all of the tenants of logic and math,  
that defines what who he was on his graph,
but that does not change the fact,
he was but a circle.  
So he watched her crash.

And so he thought, what if he'd put up more of a fight,
maybe if he'd spun just right,  
he could curve a line as it moves mid-flight.
Be like a planet, so he thought.
Stop the dot as it comes in hot.

It takes great strength to quit This is a major shift, I'm not so sure I like it, I think the analogy of a tangent and a circle almost could go unexplained, and be further extenuated.
on someone you would rather commit.

People say they are proud of me.
I would be too, if I was you,  
but me is me and you is you, and
no one knows half the power of one over two,  
with a leather coat and a doctors vote, a late night phone call and suicide note. You start sounding a little like Shel Silverstein here, and it doesn't fit with the rest of the poem, before.

I hate the thought
that all I've wrought
was a picture; after all I've fought. This is just awfully trite.

For you I sacrificed everything.
And you tossed me aside like a petty thing.
I could not stop where you were going.
But I gave you my heart so you didn’t have to go alone. By the end here, you have lost the base analogy of this poem, which I really do love, and wish you would continue with.

I think you need to work in some more connection with you first and second stanzas regarding the analogy of a tangent and a line after you leave the analogy itself, which is very promising. I like the thought here, but wish you would stick with the poem's strong point, the analogy. And maybe call it tangent to love? Mathematically speaking, tangent on love doesn't really work.