L'Ultimatum: On se marie ou c'est fini (USA)

..even for reality show standards. Love is Blind has a ridiculous premise, but seems mostly real, aside from the expected reality tv editing and staging. This is very hard to believe any of, to me. These people are being put in a situation (let's watch my partner (who I want to marry) date and potentially "fall in love" with & leave me for someone else whilst in the same room as me) that would trigger primal feelings of stress, jealousy and misery in the vast majority of people. But these people are all as flat as can be. It just doesn't look like real human behaviour. Entertaining but less so because of the seeming fakeness.