Sandy keeps saying Nick “knew what he signed up for” but he literally didn’t…

It’s annoying to me that she keeps saying Nick knew what he signed up for and that she doesn’t know why he is acting this way…his trial partner was not supposed to leave. Pretty sure he didn’t sign up to be locked in a hotel room alone while Sandy dates another man without a care in the world. No one would ever sign up for that lmao. It’s actually worse than a real life scenario where she is dating someone else, because in this situation she has 100% certainty that he is not seeing anyone else and is completely alone. It seems like she has no empathy for how lopsided/unfair the situation is. It’s very odd to me. She’s like “geez I don’t know why he’s so upset that he is being tortured by thoughts of me sleeping with another man while I ignore all his calls, have all the power, and sleep like a baby at night knowing that he is trapped here alone 🙄 after all this was his idea!!!” Granted I don’t think Nick is handling it well at all, and he is making himself look pathetic lol. But Sandy seems so out of touch with reality