Newton in romantic mood

Universal law:

"Love can neither be created nor be destroyed; only it can transfer
from
One girlfriend to another girlfriend with some loss of money "

First law:

"A boy in love with a girl, continue to be in love with her and a girl
in love with a boy, continue to be in love with him, until or unless
any external agent(brother or father of the gal) comes into play and
break the legs of the boy. "

Second law:

"The rate of change of intensity of love of a girl towards a boy is
directly proportional to the instantaneous bank balance of the boy and
the direction of this love is same to as increment or decrement of the
bank balance. "

Third law:

"The force applied while proposing a girl by a boy is equal and
opposite to the force applied by the girl while slap.