Yuna has never been in a relationship because she is too young. She has also never been in a relationship. It’s possible she’s searching for the right guy. JYP Entertainment is also popularly believed to prohibit its performers from being in a relationship.
This could explain why Yuna hasn’t been seeing anyone new or hasn’t talked much about the men she’s dated in the past. But there’s talk that Yuna has a thing for Hoseok. BTS member Hoseok is also a solo artist. There have been frequent sightings of Yuna and Hoseok spending time together.