I understand that you loved her truly but at present, I think; it’s not your love but mercy on her situation is taking over. You should remember that she has dumped you once without considering your feelings and then after left you alone to fight your emotional set back. You are not able to digest the fact that she got pregnant and aborted; this can also cause emotional distress in long run. So it is wise step to consider back out of all this. You may do it gradually but surely. otherwise, you will be trapped in emotional problem, which can bother you through out your life. I might sound radical but I always believe that some decision require true emotional insight.