He thought she just wanted him to bed her. No, her intentions were not nearly as honorable as that, and considering how dishonorable that was it should say something. But she's said just a bit too much and now he was concerned and bordering on cross. This was proving to be a bit more difficult than she had originally expected. Oh well. Except now she had to word her meaning very carefully so as not to get him angry with her.
“I know things,” she said with a shrug. “I just have a way of knowing things. Always have.” Then she looked away from him toward the fire. “Mother says I'm not allowed to speak of it again, it upsets her. It would upset others.” In fact there was only one person who knew everything Frigg knew and all her secrets and that was her darling Fulla. No matter what her mother would say, she would continue to tell Fulla of the many things she knew.
She folded her hands together in her lap and watched as the logs burned. “Sometimes I wish I wouldn't know the things I know. But I can't turn it off. I know that many jotuns will meet their end at my brother's hand. I know that there are men who would fight for my hand and that none of them will receive it. I know you are destined for great things.” Frigg paused, wishing she had a bit of yarn with which to busy her hands. But when she gave her final bit of knowledge, one that could not be interpreted as simple coincidence or logical deduction, she let her gaze meet Odin again. “I knew weeks ago that you would return and that you'd have a boy with you.”
Frigg blinked a few times before continuing. “Everyone thinks I'm mad when I speak of such things, until they come to pass. Then they get angry with me for having said anything. So I've been instructed to not speak of it again.” Which, of course, she was breaking right now by speaking of it to Odin. It was a tactical decision that had a handful of possible outcomes. Would this confession have him recoil in fear of what he didn't understand -truthfully Frigg didn't understand it either. Or would this make her more appealing? “So don't tell mother I spoke of any of this.”