But she has never been okay with it. It makes me feel that perhaps she doesn't love me anymore?
Is there any other reason for you to think that?
Looking at your previous posts it seems like the situation was similar when you travelled one month ago, she was relaxed and didn't put pressure on you. You are learning to be less reactive and more validating, you told her how the stress was affecting you and it sounds like you had meaningful conversations about what both of you need from eachother and how to improve the relationship. These are good reasons for her to feel more save and relaxed. Maybe she can see a bit clearer now how her behavior is affecting you. You changed - it's possible for her to change too, despite BPD.
Whatever her reasoning is, I would say enjoy the peace as long as it lasts and have a good time!
Maybe plan something nice for her when you come back to reinforce the positive developement and show her how happy you are and how much you appreciate her trust?