After what happened with Sophie, Dylan, who still couldn't accept the fact that his love was rejected continued to look for Jack to express his feelings. He did try to be calm, but after doing some thinking, he can't anymore.
Between two of his best friends, Ryan and Jack, although he is close to both of them, if it's about heart and feelings matter, Jack is the right choice to be a listener.
So now, there he is. In front of Jack's house, ringing the bell many times because of impatience. His mind was so twisted that he wanted someone to help him. He needed a definite solution!
"Whoa! You don't have to ring that bell so many times. What will you do if it breaks? Just come in! I didn't lock the door."
Dylan didn't know where Jack's voice echoes came from as he didn't see him, but hearing the invitation he continued to turn the door knob of the house and let himself in.