Thor wasn't sure what Frigg had been trying to do, but what she ended up doing was hitting his belt. Since it was made of a thick, hard leather, there wasn't much give. Had to have hurt, but she didn't make a sound. Frigg was tougher than most gave her credit for.
"I like feisty," Thor replied. He almost told her that any girl that'd go into a berserker rage was at the top of his list for potential daughters-in-law, but that was probably not something Sigyn had told his sister. That had been something that happened with Loki, and since Frigg wasn't throwing a fit, it was a good bet she still didn't know where Sigyn's interests lay. Best to keep it that way until they couldn't any longer. She was going to throw such a fit.
"And if the man is stupid, ain't nothin' wrong with Magni being around to pick up the pieces of 'er broken heart, now is there?" Thor postulated. "Taste in foolish men aside, seems like she's got a good head on 'er, and my boy is a catch. He's just like me."