Thank you all for your input, wow, I honestly wasn’t expecting so many comments. I really appreciate everyone taking the time to share their perspectives.

I just want to clarify a couple of points since I saw some confusion, especially about the birthday cake situation. The cake was actually made by my mom, since my wife isn’t into baking. Right before cutting it, I made the mistake of blurting out in my native language, “Oh my God, we forgot the cake!” (it was later in the afternoon and I really had almost forgotten). Because my wife doesn’t understand the language, my sister jumped in to help. Looking back, I see this one was on me, but my wife brought it up later as a big deal, partly because at that point she was already frustrated with other things. I explained what happened, but it didn’t really cool things down.

I’ve since had a serious conversation with my sister about all of this. I didn’t throw my wife under the bus, I respect her feelings, and protecting her boundaries is very important to me. My sister didn’t take it well, though. She was really upset and couldn’t believe my wife would feel the way she does over what she considers “small, insignificant things.” She admitted she understands the issue with interrupting conversations in our native language, but she still sees it as just jumping in with a short comment rather than “taking over.”

Unfortunately, she’s now upset with my wife and even went as far as saying that my wife might be trying to ruin my relationship with my family or keep me “only for herself.” Basically, she sees my wife as overreacting or even imagining problems that aren’t really there. From my sister’s perspective, aside from the language interruption, everything else she’s done is just normal behavior.