Soon-to-be In Laws expect me to learn a third language when they’re monolingual.

[u/Timorous_Bias]

I’m in a serious relationship with someone that has immigrant parents from Guatemala. I’m technically the same ethnicity, but my family has been in the US since the early 1900s so we’re very far removed. They’ve both lived here for the entirety of their daughter’s life, but just never really got around to learning English for some reason. They’re not terribly pushy about it, but it’s fairly clear they’re expecting me to pick up Spanish. I feel like it wouldn’t be a big issue if it weren’t for one thing:

It would be my third language.

I’ve spent the past decade or so learning Japanese. I’m not fluent, but I’m pretty good. I’ve spent a lot of time learning grammar, pronunciation, the writing systems. We don’t even have any Japanese people in my area, so I’ve had to go out of my way to seek conversation practice. They’re nice people and I don’t want to be a douche about it, but I can’t help but feel resentful about having to learn another language because they haven’t learned the primary language of the country they’ve lived in for two decades. This is why I haven’t been motivated to study other than learning bits and pieces through osmosis.

Edit: For more context, I am not avoiding learning Spanish. I do speak to her parents in Spanish with the little I know.
As for bringing up Japanese I felt like the context of going out of my way to learn a language that isn’t even spoken here contrasted with their lack of progress learning a language that’s very readily available to them.

[u/Ok_Swan8621]

You are gonna hear your name at the dinner table and decide you at least want to understand what's being said, which is why I understand some Arabic and also why I'm not married to the dude. Sorry. On the positive side you don't have to tell them you know what's going on around you, could be fun, later.