My girlfriend wants a break?!

C

Help meee. She wants a break and says she's smothered. What does that mean and how can i get her back? She says she wants us to still be friends so I almost positive its more than just a break. I love her more than anything and her being unhappy because of me hurts me so much. I need to get her back. We've been together for a year and to me, that's too long for us to just throw our relationship away. Pleaseeee help me. I can't lose her