Hi,
I'm not a Dreams Cancun bride, but I did get married in March at Moon Palace and a few of our friends stayed at Dreams. I was there until March 9 and didn't see Spring Breakers until we were about to leave (not at Dreams, but out and about). I think you will be ok there. Dreams seemed to be more couple oriented with some children too, but not college kids.
It's alot of Dreams brides here that could give you more information. Good luck.