Tomoyo was standing with the brown-haired girl from the annex library. Though if they had been, I wouldn't have minded.
He does talk to her the most out of anyone in the school. Since they're clearly going for the Nagisa route as the final, it would be nice to see one of the girls who isn't "the winner" paired up with someone else instead of being alone.
If you think about it, despite always trying to figure out if she is a man in disguise, Sunohara gives her a lot of attention. There was even a scene or two a couple episodes back where their rivalry was beginning to soften.