Mixed signals

I’ve known this girl for about 5 years or so. We met at a bar and she gave me her number. She dragged me on for a while. We never hooked up and I took it as a sign as she never liked me. Every time I asked she just pushed it off that she didn’t like me. So, I started talking to other girls. She would always get mad. We eventually hooked up. We stayed as friends. Long story short I simped for her and it sucked for me. Eventually, I moved out of state to pursue my own career in something I love to do. I fly back home every once in a while to visit my family and I let a few friends know when im back in town. She has since gotten a boyfriend who, to my understanding, has not treated her well and cheated on her. I know this because im friends with one of her friends who I met her through. Anyways, I didnt hit her up and I didn’t show her any attention. I got home and went out with my one friend and she shows up, all dolled up and was asking me how I am doing. Her bf has been bouncing between jobs and I am doing very well. We went bar hopping and her bf shows up and starts talking to me. Didn’t start anything with me but I was the only guy he was talking to for some reason. Anyways, next day they were fighting her friend tells me, I assumed it was because of me and I laid off talking to her. Shitty part is that I actually care about her and I don’t want to show her that. Since I have left she texts me whenever her and her bf get into a fight. Im really not too concerned with what she is doing I just wanna know what yall think