Can we be together and in love again?

Unfortunately you cannot make someone love you or commit to you, God knows I've tried! You have already been rejected by her, so you kind of know what it feels like. Love is a risk and worth fighting for. If she has Daddy issues, then i think presenting your self as a confident, strong man may influence her, she needs a decision maker and someone who will support her throughout life. If you have your own emotional issues dealt with (job, money, apartment), then go to her, tell her what you want and how you feel and follow up with how you are going to achieve it all and what you want from her. The worst that can happen is she rejects your proposition, which you know how it feels already, or she tells you she went back to that ex of hers, which hopefully won't last long. You have dedicated yourself to her, and she needs to know the extent of which you love her. She won't ever be able to forget you, and i hope she realizes this before it becomes too late and your defeat will end your pursuit.