Oh wow, ok first off, nobody posts here, so it's not a big deal, but technically you're not supposed to use names here, it's supposed to be completely anonymous, but that's ok.
Secondly, I'm sorry you're dealing with this, I know how intimidating & troublesome sisters can be, especially when they're the significant others sister!
Sisters tend to forget that just because a man is their brother, doesn't mean he's perfect, he's still a man! He's not perfect, he's capable of making mistakes, he's capable of being mean & basically he's capable of being human.
Somehow these sisters forget that & put their brothers on a pedestal. Many of them feel that if their brother does something human, like treat someone badly in a relationship (either by accident or on purpose) it should be overlooked because in their minds they justify it somehow. Their brother should be exempt from the social backlash of these offenses.
I know in my case, my sister-in-law is extremely quick to judge me & my actions, but she tends to forget that she's done really awful things to her husband in the past. I don't judge her for these things, because it's her business, not mine. I guess I always thought that she'd respect me the same way, & stay out of our relationship. I could understand her being upset with me if I had done something really mean or abusive, like hitting him or cheating on him, but I haven't.
When it comes to my brother, he's been married before & I didn't like the decision he made to get married, but it's his life & he's a smart guy. If he felt it was right for him, I wished him well with my blessing, why would I condemn him or her? They're adults, they made that choice.
My ex-sister-in-law treated my brother horribly & it hurt me to see my baby brother hurt, but it's not my place to go after her or condemn her. It's over now & I try my best not to harbor any resentment.
My other younger brother treats girls very badly! He always has & in his case, I really feel sorry for his girlfriends & for his kids (I'm not sure how many he has, I know he has one for sure, & supposedly has more on the way, but I've never met nor will I meet any of them because he's a meth addict & I can't allow that in my life).
In his case, I really want to strangle him, because our parents taught him better than that, but they are gone now & there is nothing I can do but pray.
So I guess my attitude towards my brothers & their relationships, as well as my horrible sister-in-law experience taints my advise in this matter.
It does sound to me like Jasmine is way too involved with her brother's personal life & she needs to back off. Have you talked to her about any of this? Have you talked to your boyfriend? You said that she says these things to you in front of his family, maybe you should try talking to his mom?
Calling your friends is wayyyy outta line here & I would tell them to tell her to STOP calling when she does! What did your mom say to her? This situation is definitely toxic & needs to be addressed! Thanks for posting here & I hope you will stick around & keep us updated!!! It might turn into just you & I corresponding here, but if that's the case, that's OK with me!!!
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Someday an answer will find us, quite a long shot but anyway, I think the past is behind us, be real confusing if not but anyway, I put all my hope in tomorrow, It's gonna be great I can tell but anyway, I see a new day a dawning, I like to sleep late, oh well, but anyway. -Blues Traveler