Dream Interpretation. Had a dream of tornado, exboyfriend, and swimming?

I had a dream last night I was in a tall building like a corporate office and we were in a business meeting. I'm looking out the windows and I see a tornado forming the tornado was black and the funnel of the tornado was dropping and I seen it coming down. I yelled at everyone that the tornado was coming we needed to seek shelter or run. Everyone just sat there but I got up turned over the desk I was at then everyone paid attention and they ran too. There some people having a meeting across the hall from us and I warned them too about the tornado so they all got up and I went into a closet to seek safety. some of the others went into the closet too but the door to the closet was half door and we could still see the windows and the tornado. Finally the tornado came towards the building it broke one of the windows or shattered it then it went to the building across from us and hit it and it caught on fire on the top part of the building just where it hit. We were all safe though and ok. Then I dreamed of an ex boyfriend and going on a vacation and eating out and swimming and being happy. I remember wearing a bikini but not liking it. I have some thoughts what the dream means but I wondered what others thought.