Your advice is needed

‎Slm, please I would like to seek your followers opinion regarding this issue that's been plaguing me. Firstly I've been in a relationship with this girl for some time now but honestly I can't marry her. A lot of people will assume I'm a betrayer, I've used her and now I'm dumping but sadly this isn't the case. In our society once a man notices a red flag in a woman and he leaves her, a lot of people feel he betrayed her just because he doesn't voice out the things he has endured. There are certain red flags I've had to keep up with in the hope that with correction she will change but sadly as a lot of people have told me such behaviors can't be changed, it's either I deal with it, endure it or leave. One of which is hot temper, I've tried my best to see that i make her change for the best but har yanzu. We don too play to the point This girl don see me finish It's only slap that she has not slapped me. My issue with her is, once she misbehaves, after some time she'll come back begging and apologizing.... After the damage has already been done. 90 Percent of men can't tolerate disrespect. I'm not perfect, I have my own flaws but I've never shouted at her or talk rudely to her no matter how mad I am at her. When she does that, I don't respond back, I normally retreat and go into silence till she comes back apologizing for her rudeness. Back to the main topic, I've left her a couple of times, I've made it clear that if we are married I won't tolerate the things she does if she doesn't change. Out of love, we reconcile each time with the hope that she'll change but till now she hasn't. She has a serious health issue, whenever we break up, her health deteriorates and my conscience judges me. I wish we could separate amicably and remain friends but that can't work. No matter how determined I am to leave, once she apologizes I always find myself reconciling with her. She wants us to get married but gaskiya I can't with this her attitude amongst others, I've told her several times but she always apologizes promising to do better and stupid me keeps going back 🫤🫤🫤. The last issue we've had things aren't the same for me, my mind is very far from her, we're talking once in a while every day. I feel the jokes I use to do with her shiyasa take min rashin kunya.... I've stopped jokes as well. How do i break up peacefully with her without causing problems (I've tried that once and it turned ugly)? OrIs this a normal relationship issue that I can solve?