"I Still Pay Rent At My Old Home."

"In July 2006 my mom, brother, and I bought a house (my mother financed it) and all moved in together because we all needed a place to live. The agreement was that we would each pay 1/3 of the total costs to live there and that when one decided to move out the other 2 would do what they had to to either take over the increased cost or sell the house so that the one who left could move on with their life. Remember this was before the housing crash... I met my fiancée in March 2007 and we bought, renovated, and moved into our home in December 2007.

We are getting married in Spring 2009 but for the past year I have still paid rent at my mom's place because I have always been the dependable son and don't want to disappoint my family or put an additional hardship on them. The problem is that they don't seem to be making any effort to alleviate my "perceived" responsibilities there. My job is soon going to be slowing down and it will cause a great hardship for me to continue paying rent there. What should I do? Cut ties with the risk of my family hating me? or continue to pay rent and struggle until further notice. I have already paid rent while I am not living there for 13 months and my fiancee dosent like it one bit because 1 week out of every month is working to pay that rent while we cant save much money. Meanwhile my mom and brother have been on 4 vacations this year alone and I have to turn them all down.

Should I be selfish or selfless?

New Side Updates
"Ok, under the advice of my uncle I simply told her the 1st part that I could not afford it. She reacted very passive aggressively and now constantly asks me if I can afford it "this month" or "how much can you pay". My brother (the one who lives with her still) thinks I should pay something in order to keep peace with her. I love my mom but her "love" is not worth working my ass to death every month. Should I just tell her the 2nd part to my argument that I should not have to pay? And what if she continues with the alienation and my cast-away status from that side of the family?...view more"