Because Valentine's Day goes back to Roman times, not Islamic times, this means that it is something which belongs exclusively to the Christians, not to Islam, and the Muslims have no share and no part in it.
So if you're a Muslim lady (or gent), don't really put much into today.
The love referred to on this day is romantic love, taking mistresses and lovers, boyfriends and girlfriends. It is known to be a day of promiscuity and sex for them, with no restraints or restrictions…
They are not talking of pure love between a man and his wife or a woman and her husband, or at least they do not distinguish between the legitimate love in the relationship between husband and wife, and the forbidden love of mistresses and lovers. This festival for them is a means for everyone to express love.
So how about when it is one of the festivals of the non-Muslims? In Islam, a husband loves his wife throughout the year, and he expresses that love towards her with gifts, in verse and in prose, in letters and in other ways, throughout the years - not just on one day of the year.
This applies at all times and in all circumstances, not just on one particular day.
Indeed, Islam encourages us to express our emotions and love at all times, as the Prophet sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) said: "If a man loves his brother, let him tell him that he loves him."
[Abu Daawood] And He sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) said: "By the One in Whose hand is my soul, you will not enter Paradise until you truly believe, and you will not truly believe until you love one another.
Shall I not tell you of something that, if you do it, you will love one another? Spread salaam (Islamic greeting) amongst yourselves." [Muslim]
There are many more kinds of love.
There is the love of Allaah, love of His Messenger sallallaahu `alayhi wa sallam ( may Allaah exalt his mention ) and his companions may Allaah be pleased with them love for good and righteous people, love and support for the religion, love of martyrdom for the Sake of Allaah, etc.
There are many kinds of love. It is a dangerous mistake to restrict this broad meaning to this one kind of love.
So, how can we believe that Valentine's Day is of any benefit to Muslims?
The truth is that it is a call for more permissiveness and immorality, and the forming of forbidden relationships.
The husband who sincerely loves his wife does not need this holiday to remind him of his love. He expresses his love for his wife at all times and on all occasions.