Amazing love letters in different subjects

Hydrogen Tetraborate,
Carboxyl Road,
Propane

Dearest Alkali,
The day I saw you, there were sudden Chemical reactions within me involving phenolic and benzoic rings of love. Chemically, it was found that you were the reagent for the reaction. I wanted to convey my feeling that very day but since Aldehyde, Ketone and Ether were with you, I realized that the reaction conditions are unsuitable & you would show Chemical Inertness. So, I had to control the nuclear reactions of my mind using Cadmium rods.
If according to first law of Love Dynamics, the following reaction: Heart(Miss Alkali in absolute privacy), Affection can be propagated, then meet me at Ammonium Restaurant, Butyl Road at 5 PM failing which I shall consume a mixture of H2SO4 + HNO3 + CH3COOH + C4H5ClNO3 +
(C2H5)4Pb.
Yours Chemically,
Methanoic Acid


Quadratic Equation,
Circle Road,
Binomial Junction

Dear Differentiation,
Without you, there is no existence of my functions as they are the basis of our life. Our love is always a Straight Line. There are no limits of our love and it is continuous at every point of life. Our love is so strong that no one can differentiate you and no one can integrate me. Our love is free from Complex Numbers & it is now in a state of Progression and Series. The Probability of getting apart from each other is Nil between us. Our love story is totally based on Intermediate Value Theorem which nobody in this world like FIITJEE, Brilliant, Apex, Bansal or Arihant can explain. OK Darling, Bye.
Yours mathematically,

Integration





Rotation Block,
Newton's Law,
Non-Inertial Frame

Dear -ve charge,
It was a fine morning that I saw you in Physics Lab and a Torque began acting on me, which made me to rotate about your axis. A force of gravity began attracting me towards you. Everytime, day and night, you are oscillating in my mind. But, your strong Electrostatics brother began repelling me. Since the Units and Dimensions were not correct, I avoided talking face to face. One day, I saw him outside my house and an electric shock was produced in me. So, I went in an Inertial frame and tried to integrate your phone number.
But, everytime I failed to apply the Limits. You are the light of my life. By Doppler's effect, I feel that you are very close to my heart. Today morning, a Pseudo force was acting on me which compelled me to write the letter. A wave is travelling from you to me. I request you to meet me at Adiabetic Park. Please don't differentiate me. I am in Tension.
Yours Attractively,
+ve charge