Dreaming of your boyfriend doing a breathalyzer test might symbolize concerns about safety, judgment, or trust in your relationship. Breathalyzers are often associated with alcohol consumption and assessing one's state of mind. This dream could reflect worries about your boyfriend's behavior, potential issues with substance use, or a desire for clarity in how he handles certain situations.

Alternatively, it could represent a need for honesty and transparency in your relationship. You may be feeling the need to evaluate the emotional state of your relationship or how both of you are managing stress and responsibilities.

Consider reflecting on your feelings towards your boyfriend and any recent experiences that might have influenced this dream. Communication with him about your thoughts and concerns could also provide clarity and strengthen your bond.