Significance of Valentines Day

It is not known for which of three Saint Valentine's is "Valentines day" celebrated. All of the three were martyrs of Roman empire. The closest possible connection between 'love' and these Saints was in 280A.D.

This Saint Valentine was sent to prison after a debate with Claudius, a roman emporer. Anon the prison provost had a blind daughter and with a little faith asked Valentine

I marvel me that thou sayest that thy God is very light, and nevertheless, if he may make my daughter to hear and see, which long time hath been blind, I shall do all that thou commandest me, and shall believe in thy God. Saint Valentine anon put him in prayers, and by his prayers the daughter of the provost received again her sight, and Anon all they of the the house were converted

The emporer later beheaded the saint. The debate between the two was:

Emporer: Why wilt thou not abide in our amity, and worship the idols and renounce the vain opinion of thy creance?
Saint Valentine answered him: If thou hadst very knowledge of the grace of Jesu Christ thou shouldest not say this that thou sayest, but shouldest reny the idols and worship very God.
A prince from the council of the emperor: What wilt thou say of our gods and of their holy life?
Saint Valentine answered: I say none other thing of them but that they were men mortal and mechant and full of all ordure and evil.
Claudius the emperor: If Jesu Christ be God verily, wherefore sayst thou not the truth?
Saint Valentine: Certainly Jesu Christ is only very God, and if thou believe in him, verily thy soul shall be saved, thy realm shall multiply, and he shall give to thee alway victory of thine enemies.

Umm...so why the hoopla over Valentines day as a day of Love?