My girlfriend broke up with me because I didn't want to have sex

[serious] (If you saw this already a few minutes ago it's a repost because I needed to fix some things) But for context I am a 16M and she was 15F we were in a relationship together and it was a healthy one. We were never toxic to each other, and we were open in terms of communication. we never fought with each other. We spent valuable time together, and we got gifts for one another. And it was all good I was happy, and it was beautiful until she told me she wanted to have sex now the main concern wasn't pregnancy I know there's condoms, pills, and others I could have done that but the thing is I just wasn't ready for that. I didn't want that it's not something I was willing to do, yet one of the reasons is that mentally, sometimes teenagers aren't ready, and it can have long-term effects. Well she didn't like that one bit...she got upset at me and all mad saying that I wasn't making her happy or giving what she wanted despite everything I've done and was using toxic tactics like "you probably have a small dick" plus she even wanted to film which is illegal obviously. So, of course, a big argument broke out, and that's it she's gone. What was a meaningful, valuable relationship has been burned to the ground. And I don't know what to do I've been crying nonstop and really feel like ending it all I just wanted to be a good man and do the right thing as a man to provide and take care of and it just ended in dismay. If you have any advice on how to get over this or feel a lot better, then it would be much appreciated. It just shows that nowadays nobody is happy with anything.

EDIT 1: To all of you saying I dodged a huge bullet you're definitely right after thinking about it it's so true I can't deny and lie to myself anymore and I am realizing that she was perhaps using me but I will heal and get better for my tears won't be in vein I'm going to focus on getting a job, working a little harder in school, being a better man, and definitely take a long huge break from dating as being alone isn't so bad after talking to some people. Guys, thanks so much for the support, and I love you all. I appreciate every single one of you who took the time to read this and respond! ❤️

EDIT 2: Wow, I did not expect this to blow up. This is my first time getting 1000 likes on my post. Again guys thank you so much for talking the time to read this and support me with all the kind comments your advice was read and will be taken y'all are so kind and I love you for that continue to be good people and stay safe out there waking up to my post trending in this subreddit was a surprise I can see you all care so thank you so much and if you all need anything you can always talk to me too! You all supported me, and I'll be willing to do the same! have a good day out there, and stay safe. I am starting to feel so much better 💗