Did I do something wrong with my ex boyfriend?

Hi, I'm 18 F and I was in a relationship with a boy 19 M for less than 2 weeks. Every time we kissed I just felt nothing and I dreaded it but I always said yes because thats what your supposed to do in a relationship. The day before we broke up i went to his house and we were kissing and then he was touching my boob and then asked if it was okay, I said yes because I didnt really know how to say no. Later on he kept on moving my hand to his penis when i didnt want to touch it. It was all over jeans but it felt a bit weird. I ended it because I realised I was a lesbian so I sent him this message 'Hi, I really like you and I want to be honest with you. I think that I'm a lesbian. I feel really bad because I really like you but I just feel like something is missing and I'm not acting like myself fully. I just don't want to keep on going because I just feel like I'm lying. I want you to be happy because you're a really nice guy and you deserve someone who really likes you. I would like to be friends if you want but I understand if you don't want to be. I'm sorry.' He's now got angry at me and said 'You should’ve thought about how this would be for me because I thought it was real :('. I apologised and then he blocked me. I dont know if I've done something wrong but I'm a lesbian in a straight relationship and I thought that it was right to tell him now rather than later. If anyone has anything to say that would be really helpful. Thank you