Avoiding any knowledge of each other...isn't something that's sustainable permanently.

[It's a good thing this isn't video, or he'd see her shrugging and shaking her head a little.]

However, it's understandable to do so in the short term. Assuming your first meeting occurred under the supervision of the entire class, with no obligation to stay in contact...if that were the case, would you be capable of keeping your temper under control?