Friends to dating to ...?

My ex and I were friends for over 2 years before we realized our feelings for each other. We worked on so many levels, we got along we made each other laugh, it seemed right. But after 4 months of dating he started growing very distant and eventually he broke up with me in a really hurtful way. He never actually broke up with me, he just suggested a break, and before I could say anything he said let's sleep on it. And we never did. Now he's back, acting like we're back to being friends and he never even bothered to apologize. I'm so so hurt, I thought that as his friend, he'd at least try not to hurt me. But he didn't, and he never apologized. And I don't know what to do. I mean he's been my friend for so long and I love having him in my life but everytime I think about what happened I feel so angry and so hurt. I don't think I'd ever be able to just be his friend. And I hate that.