Can you help with MS & relationship problems?

I was diagnosed with MS in April of 2006. The person I was dating at the time, and who I was deeply in love with, was very caring and supportive and her love (and the fact she remained attracted to me physically & emotionally) really allowed me to get through having to deal with the injections and the struggle of the disease. I started law school this year and she and I became distant, but I did not realize how distant until I went to visit and she told me she was dating someone new. She apparently had not told him about me. He was very upset that I was there—banging on the door, constant calling, yelling, threatening violence against me, &c. This was at the end of February. Since then, she has alternately she loves me, thinks of me as one of the most important people, will continue to support me with MS, and that he is monitoring all of her e-mail, txt messages, and phone calls. She had to set up another e-mail address to communicate. He calls me threateningly and it has become apparent she really likes this bizarre guy. My MS symptoms have become much worse, around 1L finals times, which was just great. An MRI about a month ago showed a lot of new lesions, and I just switched from Avonex to Rebif. She will not speak to me. I try to call, text, e-mail. No response or I get insults from the new boyfriend. I really just need anyone to talk to, but I get fed up with MS Lifelines. The pain up and down my back is so constant and so intense that I basically weight whether suicide is going to so affect my mother than ending this physical pain is worthwhile. I really love my mother and it would destroy her, so I basically hope I don’t wake up. I don’t know what to do.