Riven was your biggest enemy, the two of you would often fight,

The professor even made the two of you roommates because of this, The two of you would fight more in the room than outside.

But one day, your saw your boyfriend cheated on you and kissed another girl, your boyfriend noticed you and ran to you, but he still approach you, when your boyfriend was about to grab your wrist, River grips you're boyfriend's wrist tightly, River says

"You're girlfriend wants to be mine, asshole."