This is how I proposed a girl in a sarcastic and ‘ mathematical ‘ way :

” Eight years ago, I was passing by your rectangular house in trigonometric lane.There I saw you with your cute circular face, conical nose and spherical eyes, standing in your triangular garden. Before seeing you my heart was a null set, but when a vector of a particular Magnitude from your eyes at a deviation of theta radians made a tangent to my heart, my heart differentiated.

Read further

Everyday he would write to her;
Letters of wisdom, hope & love.
She’d read them with devotion;
and stack them away… neatly.

Only a mother can understand the scribbling of a two year old!

~ Sahil Lakhmani