We just broke up. What should I do?

Sounds more like then summer love. Thank you for this detailed question and story. It seems like the both of you had a great thing going. It'll be a shame to lose this. So I suggest that you do let him know how you feel. Relationships that start off like that usualy last a very long time. Give him a text from time to time. Stay friends with him. dont let him go. what ever you do.