Dream of girlfriend

I'm 16and my girlfriend and a bunch of couples go to this relationship class for a month. We have to live with our ex's for the month and miss them on the first day I do so and when I get to my room with my ex she pushes me on the bed and says she knew I still liked her and then makes out with me . The next day we are supposed to take our partner in a picnic. Then it keeps going on with my ex trying to seduce me and me having a great time with my girlfriend .