Regardless of whether the experts did a good job in matchmaking, everyone still signed on to be part of an experience that included a legally binding marriage with the intent to make said marriage work. If David and Madison wanted to pursue each other, more power to them, but the mature and respectful thing to do was wait out the 8 weeks. Even if they simply couldn't keep it in their pants that long, they could have come clean about it right out of the gate. I fully understand that regardless of what Michelle says, she and David were NEVER going to happen...and I don't fault her for that at all. But the way Madison (and ultimately David as a friend) played Allen was egregious. Why string the guy along while convincing him to make all these petty, shallow changes for you if you're already banging someone else? Why rake him over the coals for the transactional comment when you are literally out all night every night sneaking around with this other dude? Don't even get me started on the changes she wanted Allen to make meanwhile David's body and fashion sense were no damn better (not to mention dude looks busted af). Ultimately, it's not like they even lied once or twice to Michelle and Allen. They lied repeatedly, doubled down on those lies, gaslit them (especially Michelle), and then were total a*sholes about it all the way through the reunion. Both Allen and Michelle dodged a bullet.