Advice needed

Hi everyone basically going threw a rough patch, haven't had a serious relationship in 3 years, it was abusive and controlling and since I have only dated socially. Coming up 3 months ago I met someone, he was 4 years older, he was aware of my crappy past and seemed to want the same things as me, we got on so well, I dedicated most of my time to him.. he seemed so understanding and caring. Something which I haven't felt in years. We decided to get together and make a go of things around 3 weeks ago, but he then became extremely controlling. Disliked me using social media, the thought of girls holidays ect. I had kind of been blind to this as I genuinely really liked him and hadn't felt this way about someone in a really long time. I think I became almost to available for him. Around a week and a half ago he ignored me, to tell me the next day that I wasn't the one for him, he had come to realise that we were to different and he didn't want to continue this with me. I felt a minor heartbreak, he was aware of all of my trust issues and told me I wasn't to be scared to then do this to me. I felt rejected and hurt from someone I'd trusted, I felt hurrendous for days, emotional like. Then I found out yesterday the whole time I was involved with him he had been sleeping with a younger girl, and ever since I have felt so crappy. Was I not good enough? I'm mourning over the time we spent together all the false promises he made.. yet it was all a lie because he was always involved with someone else. Im still feeling down about the matter.. what do I do next from this?