I'm the same with Greek. I am brushing up on my spanish on here so I get used to languages again. I don't actually want to speak it but Mexico is just a couple miles away as i live on the border of it and Texas.
Because duolingo does stuff like that ALL of the time. It's really annoying if i actually need a hint. I have done 3 languages on here and it does it the most on Spanish. Provably because Spanish, comparitively is a bit more complex.