Allergies are no joke . If it's an environmental one, like pet hair, then any space that has or has had a pet in it can become a no-fly zone for people with severe allergies. It's just not worth the risk of a flare-up. But what happens when you're dating someone that has a pet? Dating is no easy task on its own. It can take a lifetime of meeting people, dating, and breaking up before you find someone you'd like to spend the rest of your life with . So if you find that person, you probably want…