Dolf looks like a badass, but he’s really a big softy at heart. He’s got the energy of a supportive big brother that motivates his athletes to push themselves. Despite being a 6’6” giant and looking like a total DILF, he loves being able to relate with the younger guys and make them feel comfortable.
This was especially helpful for Jack. When he first met the big guy, he saw his complete opposite. Jack had a fairer complexion, looked like a little boy, and had no sense of what he was doing in his exercises. As much as he was intimidated by the older man, he wanted to impress him as well.