I Dont Know How to Feel

I'm 18, I have a large family. 4 sisters and one of them is my twin. My twin has been my best friend since birth and we have been through a lot. We talk a lot and we like to joke a lot with each other. Sometime ago my twin tried to leave out of no where with her boyfriend who lives in another state. We weren't out of school yet. Just another 1 and half months and she just stares at the family as if we have beat her, her entrie life. Me and her go out and talk for a bit until I find out what is going on. She has felt that she is more like a he. I don't have a problem with any of that. I hug my twin. My best friend. I tell him it'll be ok. My parents are surprised but furious at how he was trying to leave. My parents get the boyfriend to go home. We agreed that after school that he can move and we will help and send off with love. Not a week later he leave in the middle of the day when no one was home besides me. I begged for him not to leave. Not yet. He just left and I have felt just so hurt and broken. I lost my best friend. He has been trying to text me but I just feel so betrayed and hurt. He left with a family he had never met and only met them online and trusted them more than me or anyone else. I'll go over more later. Just not now