E.D.
So, what you've described is pretty typical of abusive relationships, from both your sister's end and her partner's end.
I can *completely* understand why you would want to limit your contact with him and, honestly, I think it would be pretty unhealthy for you to grin and bear it. He's being abusive towards you as well, and there is no reason why you should have to tolerate that.
Yes, your sister is agreeing to stay in this and that can really, really hurt and feel frustrating/infuriating (it has been for me at least). It's also a given in these types of situations. When a person has been 'pounded' down (emotionally and/or physically) for this long, it usually, usually, usually takes a toll on their ability TO leave. This is the neurological result of trauma, really biologically real. So while your sister is making her own choices, and you are powerless to change her, it is likely that she isn't making choices from an empowered or sane mental space.
I bring this up because one of the most effective means of manipulation that an abusive person wields, is that of isolation. A person who is alone, who doesn't have support, or is otherwise vulnerable, is more easy to control. Thus, it is in an abuser's best interest to isolate their victim from all supportive and sane relationships.
Now, you have a lot of different ways you could go about this and I hope you will follow your deepest and truest heart. I can relate to the confusion and difficulty of family dynamics and seeing someone who you love deeply, become more and more entrenched in unhealthy behaviors.
*I* have found it helpful to:
- Communicate (clearly and with love) my observations and perspectives to someone who I am concerned about. Not in a way where I try to force them to co opt my position, but because it is irresponsible to not let someone know when they are in danger of being hit by a proverbial bus.
- Try to understand WHY they are doing what they are doing. Whether we're talking about addiction, an abusive relationship, or any other self harm situation, there is usually a reason why a person stays. In other words, being in the relationship (with substance or person) provides a function. If we can listen to and honor those reasons (not the same as agreeing with the methods used as a solution/justification/reason), it can help us to be more of an ally to our loved one.
- Letting my loved one know that my love is unconditional and that, no matter what, I love them. No matter what, I'm with them. Now, this doesn't mean I have to agree to subject myself to their toxicity or their partner's toxicity. For example, my sister is in active addiction. I love her unconditionally and I have communicated that. I've also communicated that while she is in this place, I will limit my contact with her. Another example is with one of my best girlfriends who is in a similar situation as your sister. I listen to her, call her over and over when she's in an isolation phase (to her answering machine, e-mail box, etc: Hi Sweetie, I'm just calling to let you know that I love you. No pressure, I know things are tough. Just wanted to let you know that you are in my thoughts. Wish you were here watching trashy tv and eating ice cream with me. Love you."), and I try to provide a safe and trustworthy place for her to receive support.
- Self care. My sister used to be my best friend. Loosing her was like ripping open a cavity in my chest. She's not dead. She's not the same anymore either. There's hope, and I prey she recovers, and I am realistic about the statistical improbability of such a recovery. Anyway, I'm pretty darned sensitive and the way that her drug addiction hit me might be more severe than it has been for others in a similar situation. It really took me down and hard. Really, really.
I'm also a mother of a toddler, and my sister's baby has become a part of my family. She is my kiddo now too. There was a lot of rough transition. I had to learn how to set better boundaries, take time off to pamper myself, ask for help, ask for support, and research the dynamics involved in DV and addiction. I had to be really gentle and loving towards myself or I'd find myself empty and unable to properly function.
- Check out non violent communication and assertive vs. aggressive boundary setting. I think you will feel good about yourself if you act with integrity and it sounds like you are doing so. Also, there is no reason in hell why you should have to play nice guy with boyfriend. Not playing nice guy doesn't mean you become a jerk or reactive. Just means you don't have to pretend to like or trust him.
Best of luck to you and your sister. Really, from the bottom of my heart. Hugs.