What rights do I have? I refuse to be tossed aside!

My husband and I married in 2004. We met in 1997 and became inseparable during 1999. He has always been there, solid as a rock. I even tried to distance myself from him in every way possible because I'd been badly hurt and didn't want to commit... to no avail. My son was 4 and my daughter 12, when he took the position of caretaker to my family.  They are now 14 and 22 yrs old, and we have a grandaughter, born 11/14/08.  My husband is 70 yrs. old...22 years my senior, but this is not an issue.  We have lived in different states throughout our relationship because he"HATES CALIFORNIA", and refuses to live here for ANY reason!  And I have been stuck in Cali. taking care of my Mom who suffered a major heart-attack and is not willing to move away from her Dr.s, friends and support circle. Until recently, my husband ALWAYS sent money, if I asked ,which i did rarely, maintained my cell phone, paid our car insurance, and any mutual bills that arose, otherwise my Mom and I take care of our own rent, utilities, misc. expenses, etc. About three months ago my cell phone broke. When I took it in for repair they told me I was no longer on the account!  Ever since, my husband has not returned ANY of my calls or e-mails and hasn't spoken a word to me or our (my) son to explain himself.  My daugter found out that he has moved into a duplex with another woman!  I called and told him that I wish him happiness, and I know how big a toll the distance and lack of a physical relationship has placed on us. But to PLEASE, communicate with us! Our son is confused and hurting...and PLEASE, don't abandon us as though we never existed!  Still, no response! What should I do? What are my rights?  He built and managed an apt. complex for the last 3 years which he has not been paid for! He/we are owed approx. $200,000. I can't stand the thought of him caring for another woman when we need help.  Two weeks ago I was forced to move my mom, my son and I into a motel due to the uninhabitability of our rental.  My mom had respiratory problems due to mold and insufficient heat that our "slum-lord" refused to fix. Now, I'm not sure where we'll go... Thank you all for your time and input.