Should I wait for my girl to come around?

Some years ago I met this girl in college. After some time we became really good friends and I started having feelings about her, but I thought she didn’t think the same of me. But she did, and we ended up talking about our feelings and being together as a couple. We were really happy but all of a sudden she dumped me. She said she still loved me but that she needed to be alone because she was going through a new phase in her life. I accepted and let her go, but some weeks later both of us couldn’t resist and got together again. We were happy again for months, but then I was absent for a couple of weeks. When I left her she said she was absolutely in love with me, and I called her while I was away and she insisted on it. But when I got back she was kind of distant, and after some time she dumped me again. She said that she still had feelings for me but not as before. I asked if it had to do with she needing to be alone because of the changes in her life and she said yes. I see her a lot and feel and sometimes feel like she still love me, but when I try to get to the topic she gets away. And sometimes I feel her really cold and distant. I don’t really know anymore if she has feelings about me. I am willing to wait for her to get through this phase in her life, but sometimes I think I’m only bothering her. We are still friends and both of us want to retain that friendship. I really love her and honestly I have no desire of looking for someone else. What should I do? Should I wait for her and letting her know that I still love her? Or should I remain silent? I’m afraid that she’s trying to convince herself that she doesn’t love me and with time she may succeed in convincing herself.