1) Your Boyfriend Suddenly Starts Demanding Space in the Relationship Your boyfriend really shouldn't be asking for more space in your relationship if there have not been any changes in the way either of you behave. His demands to be left alone could be because he doesn't enjoy being with you the same way that he did before. Calmly ask your boyfriend why he wants more space. If he says something specific, deal with it and get it over with. But if he says something vague and has no clear reasons why he suddenly wants you to take a step back, his love for you may be fizzling out. 2) He Starts Comparing You to Other Girls A guy should never say something to a girl that makes her feel less beautiful, less talented, or less of a woman than someone else. Comparing your behavior, looks, or any other aspect of personality with another woman suggests a deep-rooted resentment driving a sense of frustration. Here are some examples of how a guy's cruel words