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If the time you 2 spend together is that good then she is probably finding it hard going back to her regular daily life without you in it. The distance makes things hard. Part of her probably thinks it would be easier to be single because she wouldn't miss you so much and feel like she needs you there with her.

I would give her the time to think... to get past this months tight schedule. But sooner or later the distance is going to take its tole on the both of you.

What are the future plans?

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Are you sure that it is OK with her having this long distance relationship? It sounds like she has a hard time with getting back in her groove after every time you 2 spend time together.

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I think you do know though. If she has a hard time dealing with the emotions then it is something that you may just have to help her work through. But at the same time give her space as well. I wouldn't worry so much. Seems like you know what is going through her mind more than she does.

Just be there for her when she needs it.

Kind of reminds me of a song by Pink... Leave me alone, I'm lonely.

Please stop speculating and assuming what other people are feeling, as that can lead you so far astray, and accept what she has told you at face value. You've had fun, now back off and let the poor woman breathe, and adjust back to her life, and hard as it is leave her alone, and stop being so darn pushy and deluging her with relationship questions. Give her what she ask for out of love courtesy and respect, surely you can stay busy and wait for her to call. Can't you?