I Am Feeling Heartbroken

I fell in love with a girl, but I thought it was best to wait until she was single to tell her. Then she got pregnant, and now I think she's marrying the dad. I told her I loved her; she was so great about it. But it hurt. It hurt more than anything I'd ever felt. I think of messaging her on Facebook, just to say the words 'I love you', and to tell her she's perfect. I didn't actually say to her 'I love you', but 'I have to tell you that I love you'. It's silly, but I feel like I still haven't properly said it to her. I don't know if I should do this.