How lets him konw I love him very much

How does he feel?My ex and I broke up almost 3 years ago when I moved away for college (I''m 7 years younger) but have remained close.He had another girl for awhile,which caused some drama between us,but now he is single again and I still really have feelings for him.I know he has feelings for me (for he still calls and says things like "hope youre doing well" ..but I always get nervous when I am around him (because I still really love him and we've been through so much and I dont want to get hurt).How do I get him back?Should I let him know how I feel or play hard to get?Right now I feel like I am playing hard to get,for in the past whenever I have ignored him he gives me more attention.I graduate and am moving back to where he lives next year and I want to get back with him.guys..would you pursue an ex after three years if you didnt want to get back with her?I'm trying to figure out what his intentions are but am scared to open up and act "needy"..guys what do you thin 8 months ago