Is love really a chemical reaction?

I saw a commercial once, and it was for a chemical company. They were saying that love was a chemical reaction, and that better chemical companies can make the world a more harmonious place.

I know this question may sound silly, but I really want to find out if it’s true or not. AND! If that’s where the saying, “we have such chemistry!” came from.

Is it true? If so, I think I might want to take chemistry next year.