Dealing With In-laws..!?

[elton]

I had a very healthy bond with my in laws. They are a very very close knit family. My husband and his cousin brother both grew up in the same house. They now live separately a few houses away from us. My bond with my in-laws went a little sour when my husbands cousin got married and his manipulative wife started plotting my in laws against me.My mother in law kept on comparing the both of us, and the cousin's wife would insult me and sarcastically hurt me all the time. About a few months ago I confessed my feelings to my in laws. But now I feel they still support the cousin and his wife and are planning to help them buying a house. My father in law consulted my father and asked him if this decision was correct and he also asked him "has your daughter(me) mentioned anything to you regarding me buying a house for my nephew?" Why does he want to know that? I really doubt my in laws. What are they getting at? I don't think I can be manipulative. i am the victim of the malicious behavior of my sister in law who on one hand insults me and on the other talks very sweetly to me in front of my in laws. How do I handle this situation. What can I do to make things better. In laws feel like I am the Bad person because I complained about my sister in law. all they see is that she is so good to me in front of them.