Many people around the world celebrate Valentine’s Day by showing appreciation for the people they love or adore. Some people take their loved ones for a romantic dinner at a restaurant while others may choose this day to propose or get married. Many people give greeting cards, chocolates, jewelry or flowers, particularly roses, to their partners or admirers on Valentine’s Day.
It is also a time to appreciate friends in some social circles and cultures. For example, Valentine's Day in Finland refers to “Friend's day”, which is more about remembering all friends rather than focusing solely on romance. Valentine's Day in Guatemala is known as Day of Love and Friendship). It is similar to Valentine’s Day customs and traditions countries such as the United States but it is also a time for many to show their appreciation for their friends.
assalamu'alaikum warahmatullahi wabarakatuh
Yes my brother you are right all muslims are not celebrate valintnes
my brother in islam, we moslem should not celebrate valentine, for it comes from another religion