I dont need to know if your moms hot or not but im going to just keep picturing her as hot because shes obviously super cool.
As for the plants now its really hard to say whats going on since the two plants are right next to each other and ones doing better than the other. The only think i can think of is a root issue maybe caused by over watering, maybe root rot. This is a tough one to pinpoint man. Theres no real variables that are different between the two and they havent really been fed so theres nothing to narrow down. The only thing i can think of would be a problem with roots or watering. That moisture guage could be the problem. If its telling you to water too early then you might be over watering. Who knows man, not me thats forsure. Sometimes the fan leaves also just dry up and die at the end of the grow, it happens. One thing im sure of is those plants dont look that bad off. Enjoy the smoke when you get it all dried and cured.