Heyyy. Sorry you guys have hit such a rough spot. It seems as though she's going through something on her own. And it's something entirely beyond your control. You can't make her feelings change. It seems as though she's confused about her feelings in general. Like she's still getting over her ex and trying to work out what it is she feels for you. Whether it's real or a rebound thing. Maybe she's doubting whether she can have feelings for two people at once. Those are all possibilities.
Only she knows for sure and you guys are going to have to communicate to figure out what's going on. But she also may need time to figure it out herself. And space. I would definitely suggest letting her know that you care about her and want to do whatever makes her happy. Let her know that you'll be there when she's ready to talk about it. And reassure her that you care. But also tell her that you need to have her help you know what to do here. If she wants space or wants you around. What makes her comfortable? And let her know that even if she doesn't want to be with you, you still want to be friends. If that's true, of course. It doesn't sound as though you want to lose her though and you'd still want to be friends no matter what.
Then listen when she's ready to talk. It may not be what you want to hear. She may need time apart or just not have the feelings you want her to have. But at least you'll know.
Basically, relationships rely on communicating and being open. And that's what she's going to need to do so you guys can figure this out. Only she can tell you what she's feeling.
Don't give up though. Every relationship has ups and downs. This doesn't mean the end, it's just something to work through and hopefully you guys come out stronger.
So yeah, talk to her. :)
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kid, I wrote back,
all lovers betray.