Problem with her Attitude

Hi All,
Iam having a problem with my wife her attitude.She is always showing keen interest in her parents and her brother.She mainly thinks without her family we both cant live.Her brother used to stay with us after marriage.After 2 years i said it is difficult for him to stay with us so she was angry as her brother left out.HEr parents are also angry now with me so now they are not coming to my home to stay and they are not allowing her brother to come our house for lunch also.Now she is feeling a lot and seeing her iam hurt and she always says because of you only everybody i lost she is saying.Can anyone suggest me how i can solve this problem.I want my wife to have a dependency on me and trust me so that we both can live a happy Life.I like staying alone.

Thanks
Dora