WHAT!? I THOUGHT YOU GUYS WERE DATING THIS ENTIRE TIME!?
Anyways, I'm not sure why'd you receive hate over this- things happen! :)
But in my opinion- DO NOT get back together with him!
Listen, I'm not entirely sure how old you are, but you seem a little young to be on the dating scene- which there is nothing wrong with at all! But you said yourself that you just 'didn't feel like dating him,' which tells me that you're probably not ready for a relationship yet. You also cannot feel 'Idk' or wishy-washy about a dating relationship like that- it's either YES, you want to date him and be by him even on days you don't feel the most attracted to him, or NOT AT ALL. How would you feel if your significant other dumped you after wanting to be with you and then suddenly wanted to get back together again? I wouldn't put a lot of trust or faith in that person.
Anyways, that's just my opinion! If you feel you should go back to him, go for it!
I look forward to seeing what comes from all this- good luck! I know you'll make the right choice :)