Serious relationship help. Ladies please read. She is obviously confused.?

Her and i are in our mid twenties. We knew each other before we dated as acquaintances, and eventually we started dating. Things got really serious between us, and our feelings for each other grew tremendously. We both were in search of the same thing in life and in a relationship, so we hit it off incredibly. been through a lot together, some which neither of us ever expected to go thru. We were together for a while, and eventually i got her pregnant. Before this we both felt strong against abortions, we talked about what we were to do and decided to keep it. This brought us even deeper and more close then we already were. As time went on, we realized logically that we can not afford a child, and how wrong and unfair it would be to not be able to give a proper raising to a child. In our situation we discussed heavily and we got an abortion. :( We both took this hard, because we really did want this. We kept each other strong through, id have to say the most difficult decision we've ever experienced. Things were going well again after this, and we were still deeply genuinely in love with each other. We took a lil few day mini vacation and it were the most fun we both had ever had. This was last December right before Christmas. Since then things were going smoothly, until she started her last semester at University. She had extremely difficult classes to pass to graduate, along with starting a 40+ hour job, so she was really dead tired all the time, and as i can tell extremely overwhelmed. I would spend time with her at the school library, because id rather spend time with her there than not at all right? just being a loving and supporting boyfriend. About 3 months ago we got a hotel, and we spent it relaxing, watching movies and of course, we made love. She seemed normal to me, nothing different. At one point that day she asked me if i were going to marry her, and as i honestly felt for her and our life together, I said yes, that i would be privileged. That was honest truth. This was not the first time we had talked about marriage together and starting a family together and our careers, and her family knew she wanted to marry me. Her family stated that they have never seen her this happy, and that i really have brought their connection back stronger. Things seemed normal, and the next few weeks we prepared for her best friends wedding. This went great, and still i knew she were stressed with finals coming and being behind in term papers and such.. she told me that now was the time she needed me extremely because of my positive support and always being there for her, and she asked me to stay with her during the last week, cus the library was open 24hours. but as time got closer, things felt different. She felt confused, she felt that she could give me more, and treat me even more amazing then she has through this lack of time. We both re-expressed our love for each other, and things were a lil bumpy through the stress. so i didnt get to spend time in the library with her during the 24 hour week. it did suck cus i wanted to. She made it through and graduated though. After she wanted space, to just be on her own for once, with her family and friends. As it were difficult, i had to allow her the space. we texted alot still just not all lovey dovey. She stated that she will always love me and does see us working as a couple later.things were looking better a few weeks later, until we got into an argument because i said somethin selfish.I apologized and she was upset for days. Eventually she forgave me. we tried to work things, but she insisted that she wasnt ready for a relationship because she wanted to be on her own and grow as a independent individual. we talked and she eventually broke it off. we were no longer together. we went weeks just on our own with our fam and friends, and started to talk again as normal people. 2weeks ago she began texting me tons like we used to when we were dating, all day, callin me hun, sweetie.. she told me that this whole time apart made her realize how much she can and how much she truely misses me and her feelings for me. We decided we were gonna hangout again, and a mini vacation we tried to plan along time ago. for begin of july. but a few days later she didnt text me much and things were strange again. I asked her what was wrong, and she went back to saying she was confused with everything still, so i am confused now. i called her babe by accident and she asked me not to right now. Its been two months, i stated that it were hard for me with all these mixed signals, that her feelings are just up and down. she apologized for the mixed signals. we didnt talk for a day or two much, and began talking again now. i apologized for all the immatureness i may have done thu this, and apologized that i was sorry we couldnt work it out yet. She stated that she hopes our time together is not up yet. For two and a half yrs ive been there for her, now all of this. I just am left confu