Relationship Advice??!

I've been dating someone for 8 months consecutively, we broke up a couple days before sweetest day, now we text and talk on the phone he really wants us back.... but idk if i do... I get jealous about him talking to other girls, I avoid his social medias to avoid getting my feelings hurt but everytime we talk or hang out i get turned off so easily ... Ive been putting off us being reunited because i feel like he hasnt changed and is really immature...I feel like i dont want him but i dont want anyone else to have him... i miss him when we not together but im always mean and annoyed when we are... he still loves me unconditionally..but like i said hes immature and doesnt really communicate it bugs me... What do i do? What am i feeling? Have you ever felt this way?