Head 2 Head

Jerome, or "J," and Jinn are long-time rivals and persistent friends. They can't see each other without exchanging insults or a harsh glance. When J has a vision of Jinn's death and ends up in a crash, he's unwillingly put into Jinn's care while he recovers. In time, he comes to realise how impossible it would be to live without him.

(Source: MyDramaList)

~~ Adapted from the web novel "Nai Khrai Wa JJ Mai Thuk Kan" (ไหนใครว่าเจเจไม่ถูกกัน?) by My feline.