Dylan couldn't come up with anything other than this, there was no way he was going to risk letting her walk out of this place. Though he was completely aware that trapping her inside was not a solution, that was why he decided to take her hiking.
They've been walking for a few minutes now and even though she couldn't speak, he could still hear her grunting in frustration. Dylan was used to this already, while he was in New York, he would jog around this hill every morning, it was a good way to clear his head from unwanted thoughts.
Right now he felt it would be better for Adeline if she spends more time with nature instead of the four walls of his penthouse. Other than that, there was something he wanted to discuss with her and he would rather prefer to talk to her about it outside, he wouldn't want her to feel suffocated inside his penthouse.