How do i should i get my ex boyfriend back?????

hes a really sweet guy we broke up over the summer and havent talked that much but are still really good フレンズ we arnt in the same class but we sit buy each other at lunch (even though my フレンズ hate that lol) and i recently been having dreams of us holding hands and stuff (which i miss:'( so ya i REALLY want to 日付 him again but i have no idea if he still likes me at all so PLEASE help me!!!!!