Yet another major plot point in the finale involved the increasingly complicated love triangle between Brie, Brady, and Mike. During season 6, Brie and Brady slept with one another, despite both of them being in a relationship with other people at the time. Shockingly, Mike still proposed to Brie even though he knew what had happened between Brie and Brady (before Brie confessed). The question remains: how did Mike already know that Brady and Brie had slept together?
Mike Had An Instinctual Feeling About Brie & Brady (It’s Not Likely Anybody Told Him)
Brie May Have Confirmed Mike’s Suspicions

Toward the end of the season 6 finale, Mike proposes to Brie, who then immediately comes clean about her fling with Brady. Surprisingly, Mike responds, “I know,” revealing he already had some inclination that Brie and Brady had crossed the line, and he was proposing anyway. The scene concludes before Mike explains how exactly he knew this had happened, though.
In all likelihood, Mike simply had a gut feeling that Brie and Brady slept together.
Given that, it’s quite possible that Mike said “I know” when saying he suspected as much would have been closer to the truth. If that were the case, Brie would have confirmed Mike’s fears, which would explain why he accepted what she said so quickly. Mike feeling suspicious rather than somehow knowing for certain would make a lot more sense.
Why Mike So Quickly Forgives Brie For Her Affair With Brady
Mike Likely Believes This Was A One-Time Mistake
Perhaps the most shocking aspect of this conversation is the fact that Mike still proposes to Brie even though she only recently cheated on him. Presumably, Mike believes that Brie sleeping with Brady was just a one-time mistake that she regrets. That’s still rather confusing though, as Mike decided to propose before Brie had said any such thing. One would think that Mike would want to hear Brie say those things (of her own accord) before he was willing to make a commitment of this magnitude.
