You know if there was a love story between Boos, I'm pretty sure they would be too shy to express their feelings toward each other. They would even find it hard to face each other and make eye contact. LOL. 😂
So... imagine you switch the 2 Yoshi's with Mario and Luigi... On a scale of 1/10 how weird would it be if Mario and Luigi had a love story between them?
The thing in the top right of the yoshi house is a crusher I've played the level and i realized that that was its purpose when you dropped a yoshi in it