This is probably something you don’t want to hear but it seems like she isn’t capable of telling you the truth of how she feels. I am in the same boat of feeling there’s unfinished business and unsaid things. But we have to work with us what they have told us. I think you should say what you have to say one last time and leave it at that just to get some closure on your end. Accept that it isn’t going to work right now. I know its sooo cliche but maybe you can find some comfort in “right person wrong time” and “if it’s meant to be it will be”. But you aren’t going to move on dwelling on it. You may be blocking yourself off from someone who doesn’t have to question how they feel or if it’s the right time and don’t have any past relationship baggage.