DISCLAIMER: THIS IS BASED ON A PANN ARTICLE with KNETZ COMMENTS (not mine, I don't ship any of the idols mentioned below)
Basically, idols date a lot and all idols are dating.
Relationships last only for 2-3 months so dating is fast phase for them.
Ever since the start of pandemic, idols tend to date in their own homes = living together.
Only rumors it's up to you to believe it or not.
JK and Nayeon dated end of 2017 until start of 2018.
Jimin and Seulgi dated almost 5 years ago.
SJ Donghae and Lovelyz Yein are dating
IKON Junhoe and Lovelyz Yein dated
Cha Eunwoo and Choi Yoojung are dating ? (It seems that they already broke up)
RM and Jisoo are dating ? (not sure with this one)
V and Lovelyz Ryu Sujeong but already broke up.
Miyeon dated 3 big male idols (exo, nct, the boyz)
Ong Seungwoo is dating an actress.