<human>: Can you condense the text into three sentences or less?

My girlfriend of 3 years broke up with me about 3 months ago, we were long distance and she just wanted to take a break until I transferred to her university next semester, but I said no. We didn't talk for two weeks, and I found out from a friend that she had a fwb. I messaged her about it and she said that she only slept with him because she didn't know how to move on, and that she thinks I'm the love of her life. 

About 2 weeks after that, she told me that she doesn't have feelings for me anymore, and that she doesn't know if we'll get back together once I transfer. I didn't understand how she could go from saying I was the love of her life to her saying that she had no lingering romantic feeling for me. We stayed friends and she would always flirt with me, so I thought she was just saying that. 

Then about 2 weeks ago, she told me that one of her friends asked her to be his girlfriend and she said yes. I asked her questions about and she said that I'm annoying and that she doesn't have any feelings for me. I haven't talked to her since this. 

She constantly texts me, but it's just pictures she finds funny and things like that. She looks really happy in her new relationship, I always see pictures of them on her snapchat/facebook. I don't understand how she can lose all feelings so soon, I don't understand how she can be happy in a serious relationship so soon, I don't understand how we finally have the opportunity to have a real relationship and she doesn't even want to try to work things out. I think she's the one, and I don't want to lose her forever, I just don't know what to do. Today she texted me and said " So are we just never going to be friends again?" What should I do? Should I reply? I don't want to be friends if there really is no chance of us getting back together.
<bot>: Ex-girlfriend says she doesn't have feelings for me anymore, but she still constantly tries to text me. Should I reply?