<human>: We were together for about 6 months. I broke up with him because he was too clingy and had insecurity issues (thinking I would cheat on him or leave him with absolutely 0 evidence). It became a self fulfilling prophecy.

I gave him space and did not contact him for just over a month so he could process, since he seemed very upset when I left him. I said I'd like to be friends later, but first I was gonna give him space and I understood if he didn't want to be friends.

I was just contacted by him and he's saying he's very bitter, he didn't know if I was just being polite or really wanted to be friends, and that a true friend would not have gone radio silence on him. We attend the same school and share many friends, I'd like things to be as least awkward as possible. I apologized for the quiet but explained my point of view, also apologized for not being able to give him what he wanted/needed in a relationship, but he seems to still think there is something to "resolve" and continues to seem bitter despite accepting my apology, saying how being friends means that I have to be willing to do so (which I've stated many times).

Can you provide a brief overview of the text?
<bot>: Should I just give up on trying to be friends with my ex if he seems to just be dwelling and unable to not be bitter?