"I meant not telling him. Or telling him." Yes, she loved Peeta. That was why she didn't want to hurt him. But that kiss just now hadn't been nothing and she couldn't tell Peeta it had been. Maybe it wasn't the same with Gale as it was with Peeta. Maybe she felt different things for the both of them. That didn't make any of this less confusing, though. It didn't change the fact that Peeta was going to be hurt by the kiss.
She knew Gale was right, though. She had to tell Peeta, no matter how much she didn't want to. Especially if Gale was just going to tell him, anyway, if she refused to do it.