Heh... sounds like someone is trying to revive the old "Melissa" virus (was it Melissa?) of yesteryear... people were bombarded with emails that contained the subject, "I love you," and, of course, many lonely-hearted computer users thought some stranger they'd never heard of before actually loved them and fell victim to the virus. It's tough to resist opening an email like that because curiosity gets the better of you.
Convert: I would highly suggest never opening an email that you don't recognize, much less download and try to install/run any attachments from said emails. Even though the Mac is secure from virii, it's still not a good idea.