<human>: Could you distill the essence of the text into 1-3 sentences?

After a several week long summer program thing, my girlfriend's having a hard time adjusting back to normal life and really misses the friends she has made over there. I've never attended this program before, so it's a bit hard for me to relate to her troubles, but I really want to help her out.

Ever since she's gotten back, she's been feeling down, and has been less responsive with her texts. I really want to help her and comfort her and I've expressed that sentiment several times, but I honestly don't really know what she needs.

Even though I do realize that she can't get over it just like that, and that it takes time, I really, really want to see her happy again (or at least help her make progress and feel better). I suppose it's rather selfish of me to be like this, but I guess I just feel restless and worried and useless not being able to do anything to help.

Do you have any advice on what I should or shouldn't do?
<bot>: My girlfriend just came back from summer camp and feels down. I'm not sure what I should do, but I want to help.