You can be friendly without being actual friends. I prefer not to make actual friends at work, the exception being once I'm no longer working with I'm more likely to spend time with them socially. I never understand why people get so upset when you don't want to be friends; they interpret that as "you must hate me if you don't want to be my friend". No, I just have a finite amount of time and energy for friends.

My performance is not based on friendship stats like some kind of dating sim.