No, there isn't any evidence that he was gay. Perhaps you have seen old paintings in which he looks very feminine, but this was the style of art back in those days. Actually, few people ever talked about their sexual identity in public back then; but what we do know about Valentine comes from church history, and all it says is that he was a strong advocate for what is now called "traditional marriage" (one man marrying one women), and he was very much opposed to polygamy.
February 14 is the feast day of Saint Valentine of Rome.
Saint Valentine of Rome is the patron saint of lovers.
Valentines day was named after Saint Valentine.
Saint valentine
Saint Valentine was a priest in Rome.
Saint Valentine of Rome
The feast day of Saint Valentine of Rome is on February 14. He is considered the patron saint of lovers.
Saint Valentine
Valentine's Day, February 14, is the feast of St. Valentine, the patron saint of lovers.
You have it backwards. Valentine's Day is named after Saint Valentine of Rome and February 14 is his feast day.
We have no record of any family Saint Valentine may have had.
Saint Valentine was a male. He was also a priest.