Jennie was in LA during bts's LA promo back in Nov 2021 but Joanna was also there so rumors about V and joanna emerged and no one questioned jennie's appearance there because she was allegedly dating GD.
Jennie attended coachella during the same time as Bts's LA concert and interesting fact is "Irene kim" and Jungkook's rumored gf attended the coachella on the same day. They've been quietly supporting each other and we never realized it, Hybe always deny such rumors so it appears to me its them who want to date publicly.