don’t know what to do!

i recently broke up with my boyfriend of 11 months and let’s just say he is taking it very harshly. it wasn’t for any bad reasons i just lost feelings for him and i am in high school so i didn’t want to be devoted to him for the rest of my high school years and that is what he wanted so i finally got the nerves to do it. he has been crying for 2 days straight and keeps begging to get back together and making me feel so guilty and it hurts because i have never hurt anyone emotionally before. he really wants to keep talking and stay friends because “he needs me in his life” and i of course am fine with this because i want him to be happy still but it is a little much. he responds so quickly and we are talking more than we ever did before we broke up on account of him wanting me back and me feeling bad for him being so sad. i don’t know how to handle this and how to make him be okay with letting me go. please help!