Am I in the wrong?

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Guys, I need advice.. 
I was in a relationship for almost 18 months with a boy, he was not a man, but a boy, Who straight out, to put it plainly, abused me. Some may think it wasn't abuse, but I believe it was. He controlled every single aspect of my life, who I spoke to, what I wore, where I went, basically, how I lived. 
I was not happy. I was upset the whole time but stupid me just was in love with him. 
Anyway. On the day Finding dory came out in Australia, June 17, I took the bus with my Best friend to be the first to watch our all time favourite movie. Here's the thing, I lied to him, I knew he would leave me and do something to hurt me if I told him I was taking the bus. 
We broke up a little over 4 weeks ago, and I still never really told him the truth. I felt bad for not telling him but in a way felt he deserved it. 
Yesterday, he found out. My 'best friend' who hadn't spoken to me for 6 weeks, told him. And I tbh, am so happy she did. I was glad to clear everything so I didn't feel so bad. But he lost the plot and was going off at me. Saying mean stuff about me, putting me down, all because he abused me? 
I understand where he is coming from, but in a way, I feel like I shouldn't feel as bad as I do? 
Am I in the wrong here? I feel bad for doing it but I wouldn't have had to do it if I was actually allowed to hang out with my friends.. 
If you read this far, I love you. 
Please please tell me your true thoughts 😥