My GF and I are in a tough spot right now and neither of us really know what to do or handleit

So, my girlfriend and I have been together for around 3 months now and we've been as happy as ever since we first met each other, even before we started dating. Recently though she went to a camp which was no tech or wifi or anything allowed so we didn't talk for like 2 weeks, but she ended up getting injured and a really bad concussion towards the end, so she came back early. Ever since she came back though she's been kind of distant and she doesn't really talk to me too often, now granted she's been busy with her activities and being out with her friends but like she rarely ever responds to my messages and never seems like she wants to hangout (which is not like her at all, she always wants to hang out with people). Now, I've thought that I'm just over thinking things because I've been in so many toxic and terrible relationships at this point (literally like every relationship something has happened. I've been cheated on, played, manipulated, etc.) and maybe I'm just worrying too much, but I recently talked to her about it, and he said she has been being a bit distant lately but she doesn't really know why she has. She said since she hurt her head she's just been really confused and doesn't really understand why she's been acting the way she has. (I'm not the only one she's been treating differently, she been having a lot of "attitude issues" with her parents too) So we talked about it and she also said that she thinks that her priorities have just shifted a bit too because now she's doing her other activities and hanging out with the people there and she's just not always thinking about other things. Now I don't want her to think she can't have a life outside of me and like she is doing something wrong, especially since she seems just as confused as me.
I told her that I would take charge of making sure that we hang out and make plans, but she doesn't think that's fair to me since at that point I would be making basically all the effort in the relationship and she doesn't want to make me feel worse or treat me like other people he in the past.

So, what do you think the 2 of us could do because we both still want to be together and be happy but aren't sure what the best way to manage that is.