Every year Valentine’s Day brings new web sites with new malware.
One in particular sends you an email with a random love note and a link to a web site. The web site has a bunch of hearts for you to click on. If you click on any it asks you to open a file called you.exe.
Any file that ends with .exe is dangerous. In this case it infects your computer with malware.
Below is what the web site looks like:
If you see this close the window and ignore it.