Reiner and Y/N were in love until it was revealed he was the armoured titan and everything felt like a lie. Set in a canon divergence of season 4- Paradis manages to stop the rumbling without killing Eren and save Marley. Markey and paradis come to a truce and a treaty is signed- where some people in Marley will live Paradis. Those people being Reiner, Gabi, Falco, Pieck. Reiner is still in love with Y/N, even after 4 years, he’s still full of regret and pathetically in love.