I need advice on what to do next. DH is one of 6 children, I was ecstatic to join a big family as I come from a small family where everyone is estranged. In hindsight, that set me up poorly as I was young-ish ( pre- therapy :P) and bent over backward to be accepted. Everyone was super nice and inclusive at first. However, one of the spouses, my SIL always hated me. It was more ignoring me at first, which most people said she would warm up to me eventually. Of course, I tried to be extra nice and long story short I became the perfect victim. It's gotten really bad since we have had kids. It's to the point that every time we interact either in person or family chat-type situation, she ends up making insulting remarks. She complains to everyone in the family that we never visit but when we do, she makes sure that it's terrible for us and accuses us of stealing their stuff, breaking things in rooms we did not go into, or messing things up for them, every single time, to the point that I am not comfortable going to their place anymore. Of course, they are always hosting everyone, so we would end up isolated if we don't go. We do live out of town so hosting is not an option for us. Of course, this is always used against us. When she was working out of town on her own career pre-kids, everyone (including us) were supposed to accommodate her schedule, which cost me a lot of money several time.
Recently it escalated to the point that she was really rude/ insulting to me in the family group text, and no one said anything, because they are all happy I am the target, and not them. Kids are young and still all get along together quite well, but I am disheartened to be slowly losing a family that I was fully hoping I would be a part of. I also realize that I don't have anything to lose if they don't stand up for me. DH will continue to go and facilitate kids interactions, but what is my next move? How do I protect my mental health, as I was scapegoated in my own family, this is really not a great situation for me to be in and very stress-inducing, despite my best effort at letting it go. How do I grieve "losing"/ failing at being accepted by another family? Thank you!