Dreaming of my boyfriend cheating on me is a very common dream and it usually is a sign of insecurity and doubt as per dream interpretation and meaning. It is common to feel bf is cheating on me. The dream is asking you to clear your doubts and get things in line before proceeding with the relationship. Dreams of my boyfriend cheating on me and you know the person means someone you trusted will ditch you.
Dreaming of my boyfriend cheating on me and you are angry and unhappy or crying in the dream then it is a clear sign that there is something wrong in your relationship. You should sort it out with the help of a mature friend or person.
Dreaming of my boyfriend cheating on me and you are not seen in the dream means you should give a proper thought about your relationship. You should avoid acting in anger or haste.
Dreaming of my boyfriend cheating on me and you are happy in the dream, then it means you want the relationship with boyfriend to end and you are just looking for a good reason.
Please note that usually such dreams happen as a result of intense activity on the same subject during day time. Then the dream has no meaning. The dream to have a meaning it should happen naturally without any daytime influence.