Dream about my X-boyfriend

So I'm 17 and my senior year of high school just started this week. My x who I dated last year sits next to me in my math class and we haven't really talked much but we are like "friends" but don't talk that much. We dated off and on for 2 months last year and were best friends prior to that. He was the one I loved the most out of everyone I've ever dated and i recently had a dream two days ago of him kissing me and it reminded me of when we were dating. Does this mean anything ? I probably would get back with him. But we don't currently talk but we do sit next to each other in math. Help?