@Doe His obsession with Ian was merely to show that he is just a caring & lonely dude with some personal issues - proving he has a nice character attribute. And most of us DO NOT want Jo to step away because, to be honest, Jo & Ian are a lot healthier pair than TJ & Ian. I only responded to your question where you specifically asked WHY we like him given the fact that he appears to you to be only looks with no personality. We already know that Jo & Ian will be the endgame here, and we also know that TJ will do something idiotic later in the chapters out of jealousy and separation concerns that will simply render Ian more distant and favour Jo over him. Its just TJs unique and entertaining personality that we like and enjoy. Hope this makes sense.
i should be sleeping 