clueless

me and my ex boyfriend were dating a little over a year but things seemed to change little by little and we started resenting each other then things got kinda hostile. but I love him and I miss him so much. we did everything together. I have tried to move on but I don't know if I want to. I am talking to this new guy who is a little older than me (like 2 years) and I really like him but I don't know how he feels about me. he never says anything about how he feels and mostly gives me short answers but he's very sweet about everything. I used to have a crush on this guy when I was in the & 7th grade. I just don't know what to do. help?