Clare's boyfriend, Justin, has been acting odd over the last month. They've been together for two years and all of a sudden he's spending all kinds of extra time at work and the gym. She thinks he might be cheating, so we're going to help her find out!Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices