interpretations of dreams?

I had a dream of my ex boyfriend and my best friend slept together and in my dream I was crying and really hurt and very jealous. I woke up feeling a little of all of those. but I'm positive I have no feelings for my ex. this is why I broke up with him, I was not yet able to give you a kiss! What does this mean? it has something to do with the fact that lately my group of friends (where my ex parte and you're my best friend) got mad at me? and has been on my mind all the time ..

Dreams often subconscious fears play out. I'm sure that has something to do with the fact that they are all crazy to you, but I do feel that they also have some attraction for others, too. If you do not have feelings for him, then no matter if they come together.