My boyfriend and I picked out a home together and have been together for three years. When we moved in together we planned on getting married but there are so many issues I don't know what to do.
His Mother and sister hated me from day one of meeting me. I never did anything ( truly) except treat them nice and had high hopes of being close to them. The Mom and sister would ignore me, call me names to my face and a year ago came in to our home in the middle of the night and demanded me to get my stuff and move out and for him to choose between them or me. They told my boyfriend if he chooses me that he can say goodbye to his family. They also left threatening messages on my voicemail warning me that I better leave. Shortly after this all four of my car tires were slashed but I have no proof that they had anything to do with it, however, I don't know anyone that would do that. I will also add my boyfriend and I are in our thirties and pay all of our own stuff so there is no issue with money being borrowed.
The last incident of them coming in to our home scared me to where I no longer want to be around them. The issue is now around the holidays I feel extremely sad. I lost my Mother and Grandparents and I do not have any siblings. My Father has never been around. I am all by myself and I feel alone in my boyfriend's family as well. I also found out my boyfriend cannot have children. Everything seems so overwhelming.
My boyfriend goes to family events without me. I am never invited not that I would want to go considering all that has happened. I just don't know how to deal with all of this.
My boyfriend asked his Mom what her problem is with me and his Mom responded that her Mother in law was mean to her as if that is an excuse to be mean to me.
Also the issue has nothing to do with us not being married. His sister just met a guy and after one month moved in with him and my boyfriend's Mom invites him to all family functions and treats him with respect and like a part of the family. The Mom also says the daughter's house is his and hers ( even though he owned the home before knowing her) but with my boyfriend she says it is just his home after we both have been together three years. When cards get mailed out for the holidays by the Mom and sister it is just addressed to him only. When my boyfriend goes out with the Mom and sister they do not even mention my name as if I do not exist. My boyfriend says he's talked to them but nothing has changed except the threat calls. My boyfriend has weekly family dinners and for the holidays four family dinners in the week and I am by myself.
What is the best way to deal with this situation?

