Dreams involving relationships often reflect our subconscious feelings about those connections, our emotions, and our desires. In your dream, the dynamics with your boyfriend and coworker may symbolize feelings of betrayal, jealousy, or insecurity. The fact that they became a couple without your knowledge could indicate a fear of losing someone important or feeling replaced.

Your decision to ultimately choose to be alone and kick them out suggests a desire for independence and self-empowerment, possibly indicating that you value your own well-being over a relationship that may not be fulfilling. The distress you felt upon waking might stem from the emotional turmoil of the situation and the change it represents in your life.

Consider reflecting on your current feelings about your relationships. Are there any boundaries you need to set, or are there aspects of your life where you feel you need more independence? This dream could be prompting you to prioritize your own needs and desires in your waking life.