I need help about close friend who keeps changing her mind. She ghosts me then runs to me

I am 16 and Katya is also 16. I met her when I was a little kid we basically grew up together up until she and her mom moved away when we were going to middle school, she was also dating a guy and she broke up with him. We were close friends and saw each other as brother and sister then. They barely moved back. When I met her again a few years later (now) I felt like feelings changed for each other. We hung out a lot and she got back with her ex.

She started sleeping over on the weekends and I sleep with her basically every weekend and she likes to cuddle with me. Our moms let her spend the night on friday and saturday since there is no school. Well recently she broke up with her boyfriend and she ran to me for comfort. I tried to console her as hard as I could and she basically started ghostin me for a few days.

After she ghosts me she comes back to me and gets super attached and just wants comfort. She started doing that a lot but just recently she texted me “A I really love you a lot, you know how much I love you right? I don’t ever want to lose you okay”. I asked if everything was okay and I told her I also loved her. She came over again. We slept together and she didnmt want to let go of me in the morning and she started crying.

I asked if she was okay and she said she was really sad that her boyfriend treated her like crap and he was seeing other girls behind her back. I told her I would be here for her and she just said “no”. She left in the morning and now she texted me if she could please spend the night with me today. I am confused as hellWhat should I do? I am confusing as hell. Any advice would help here since I’ve never been through a situation like this. Sometimes when she keeps doing that I ignore her and she just starts crying