Well, St. Valentine's Day was never meant to be all romantic lovey dovey, considering it commemorates a guy who was imprisoned, beaten, and beheaded for his beliefs. However, he was also known for sending letters to all his friends from prison. Some say he officiated at weddings ancient Rome considered illegal, but I'm less certain of that.
The point of St. Valentine's Day isn't just to spend time with a significant other, nor even to tell your friends you think the world of them, but to do all that in this guy's memory.
And mutual support is always a good thing.