Mabel and Dipper

On ''The Land Before Swine'' episode I realized Soos said ''trust me''. Remember when Mabel asked Dipper to trust her on marrying the gnomes. I have theory that this is what the series is about. Dipper and Mabel will have to trust people but, I think they will end up being too trusting and then something bad will happen. For instance the code in the book 3: Stan is not what he seems. Also on book 3 it says ''Trust no one''. They might be to trusting with people maybe even Gruncle Stan because in ''The Land Before Swine'' Mabel trusted Stan with Waddles but, he ended up putting Waddles outside when Mabel made that clear she didn't want Waddles to go outside and it ended up in to a whole episode to find Waddles. In fact they could have named the episode: Finding Waddles. That's what I think of Gravity Falls trust. What do you think of GF trust, please comment below with your opinions.