What should I do

I ‘M/22’ have been dating my girlfriend ‘F/22’ for a few months now and she’s so amazing. Everything started out great and we were both really happy. However recently she’s started being more distant and not wanting to hangout. She’s been going through a lot the past few years and her last relationship was pretty toxic and didn’t end well. She texted me she’s been feeling depressed lately and that she wants to be alone and have time to herself and that she can’t be a girlfriend right now. She said she doesn’t have the energy to do a lot of things right now. She told me she still likes me and thinks I’m great but she can’t be a girlfriend right now. She also said she can’t give me the attention I need and that I deserve better. I’m conflicted on what to do because I really like her and she’s amazing and I would go through hell and back for her. I’ve been wanting to sit down and have a talk to her because I really like her and want to continue the relationship but i don’t know what to do. What should I do?