It was my friend's idea and at first it was just like lol but then it got kind of real. I also like it because I like both of the characters individually a lot (both are in my FE Top 15 characters) but I don't like any of their popular ships (Ced/Altena, Ced/Tine, and Mareeta/Saias) so might as well just put them with each other. If you squint, they probably have stuff in common, but that's not my main reason for pairing them together