Chastity and orgasm denial discussion

Hi everyone! As you might have seen in the intro section, I’m pretty new to chastity. My girlfriend kept me locked up for ten days without an orgasm, and she promised seven more as punishment. Things were going really well. She was dominating me 24/7, mostly subtly, affecting our relationship overall. I loved it, hated it at times, but did my best to please her. This morning, however, she surprised me by unlocking the lock… and having sex with me. I know she’s in charge and that using me for sex is “her right.” But despite trying hard not to cum and reminding her often, she just said, “shut up and cum.” So I did. I feel a bit disappointed now because I tried so hard to please her. Even though I’m glad to have relief, I feel strange about my girlfriend lacking strength or “quitting” the chastity game (though it is her choice). The issue is that I don’t stay very submissive after cumming. It takes a few days for me to get back into submission mode (until then, we’re equals/partners). Also, the teasing stopped. So I feel like I cheated on her or she cheated herself… She stepped down from her powerful position. Does anyone else have similar thoughts or issues?