My ex friend hasn’t responded back. She hasn’t accepted my friend request. 🥺😭 [I Use Facebook]

She’s kind of my ex friend, not really but we just haven’t spoken in three years. I admitted I removed her from my friends list because she hasn’t been responding to me or anything. I know I haven’t talk to her either because I’ve been busy with my life. I thought parts of it was my fault too. Her another message today and I even sent her my number to call me so we can talk things out and I know we haven’t been really good friends to each other lately but that doesn’t mean we can’t try again. I mean I messaged her a month ago but no response. Then two weeks later I sent her another message. I sent her a Facebook request but it seems that she hasn’t responded yet. I mean why won’t she respond to me? I know we had a fall out but I wanna try again. I asked everyone else if they’ve heard from her or they have her number but none of them has talked to her. Should I just move on or keep going because I don’t give up easily. I’m going to find her. I’m a feel now she’s running away from me. Or maybe she doesn’t use Facebook like she used to maybe.