Except it did happen. The Aunt said something about husbands being responsible for finances and Will shut down. So it is not baseless.
And the evidence of Will's internal scoreboard was there all season. If Jasmine said something he didn't like, he had to contradict it. Even when Jasmine stated a fact, he had to contradict her.
Will is not being "lied on". He did those things. When he met the dog, his first reaction was to automatically decide the dog wasn't house trained, despite not having any evidence of that. So for him to now act like he liked the dog is just ridiculous on his part. If his fans don't like the truth about Will, that is not my problem.