frenemy

noun2

1. •
   (humorous) Someone who has traits of an enemy and a friend.

   • Another enemy / Not even a frenemy. — 1987
2. •
   (humorous) A fair-weather friend who is also a rival.

   • So, we're definitely not going to be friends with Ferguson? Maybe we can be frenemies. A love-hate relationship's the next best thing. — 2008