At Home

so as most who write blogs we all have interesting life stories to tell...well my situation is one of the hardest things i have to deal with in my life so far, how do u deal with yur boyfriends family. so i live with my boyfriend his mom brother and our two kids but a person who also might stay at the house frequently is his older sister, whom i dread. she was once my friend but when upon my attention i found out she was spreading rumors and stealing my personal belongings, i decided to end our relationship. this family is unlike the ordinary, they value their cultures traditions and are very closely knit. so what bothers me the most is that they believe they are never wrong. over the past months i have noticed missing items in my room one which was a bracelet that i bought from tiffany's and before you read along his family including my boyfriend has never owned or even heard of tiffany and its value, this family does not shop at high class stores for that matter either. back to the story , i lost the bracelet and i thought i had misplaced it so i did not care too much about it. just the other day i notice my boyfriends sister wearing the exact bracelet that i lost so , not causing any drama i took my boyfriend to the side and told him that i believe that the bracelet is mine. he kept stating that i do not have proof , shr could have bought it or his mom could have given it to her. my mind was goin crazy and i couldn't believe what he was saying and kept reassuring him that his sister or mom have never stepped in the store that i bought the bracelet, but still kept on ignoring the fact. i mentioned what had happened to my mom and what my big mouth mother did was go tell his aunt , that lead to her telling him that i think his sister is a thief. when coming hime from work he pulled me aside to our bedroom and asked me if i had proof and started yelling at me saying how could i think his family is filled with thieves. so my question is how do i deal with what has happened because during this moment he told me that if i were to call his sister or any family members thieves again he would ick me and our children out the house. i could not beleive that he would say such as thing and told him how he goes out with me and not his sister and explained to him that you do not know what people of capable of doing and that just because she is your sister does not mean she is a saint. i really do not know how to deal with this and i am in need of serious advice especially when it comes to his sister. extended family members to not even talk to my boyfriends family because of her lies and wrong doings so in my situation it is kind of hard to break up a family that has their heads sprung high.