If someone says they don't have any deal breakers, they're probably lying. Or they're just huge pushovers and desperately lonely. And while we feel for people like that, we gotta say: deal breakers are a healthy part of dating . Having this ultimate red flag in your mind, especially when dating online, can help you maintain important boundaries, and also help you dodge some serious bullets. If course, there are many kinds of deal breakers. Some are minor, some are shallow, and some actually mak…