Girlfriend acting different around me, weird? (free five star to best advice...?

recently she hasn't wanted to really hang out like last week and today at school i heard she was trying to avoid hanging out with me this weekend, but she still talks to me on the phone every night and talks to me at school and still even kisses me and says she still likes me, shes says shes confused about us, and recently she doesn't really wanna talk about the confusion so i thought i should give her space mentally like stop asking so many questions and just talk and be happy with her, but IDK this is really bothering me that i hear she didn't twanna n hang out this weekend i dont wanna approach her if its not true, maybe i should wait a couple weeks and see if it goes away , at the begging of our relationship it was all ok and she even told me she could see us being together for a long time but recently she has acted really weird, she has her guard up and is being uncomfortable around me, yet she still gives me a hug and a kiss... does anyone have any idea whats going on, with Christmas soon i just want this all to be over with so she can fully appreciate what i got her fro Christmas i pout alot of thought into it and i truly do love this person i just want to help, but she says its osmething she has tohandle herself