Ever since the birthday party, Jungkook had started being civil to Jimin and from then on, Jimin started noticing every little thing about the taller and he couldn't deny he felt a strong pull towards the tall Busan bunny.

Taehyung was a never really a commitment sort of guy, so eventually he started spending less time with Jimin, which only led Jimin to spend more with Jungkook

Soon enough Jungkook's caring nature and fun personality led Jimin to fall in love with the boy. But they were both unsure of what the other felt, besides Jimin was still technically Taehyung's boyfriend so they didn't do anything about it.