Dick is his older brother, and nothing can change that. He looks up to him a lot, even while he felt like, for a long time, he was going to be stuck in Dick's (well, and Jason's) shadow. He admires him still, and sometimes he wishes he could be more like him.
Whenever Tim's having trouble, Dick is one of those people that he's going to go to for help-- because he can count on Dick to help him and support him however he can. He knows that Dick is one of those people who is going to be there for him no matter what. So he can rely on him when he needs it. He feels comfortable talking to Dick about pretty much anything. Even more so because, for a while in canon, Dick was the only one Tim could talk to. Dick's his big brother and one of his best friends. Even though this whole situation sucks, he's pretty damn glad he has him around. He'd hate to think if Dick was gone, too, after all.
Re: Tim Drake / Red Robin
Whenever Tim's having trouble, Dick is one of those people that he's going to go to for help-- because he can count on Dick to help him and support him however he can. He knows that Dick is one of those people who is going to be there for him no matter what. So he can rely on him when he needs it. He feels comfortable talking to Dick about pretty much anything. Even more so because, for a while in canon, Dick was the only one Tim could talk to. Dick's his big brother and one of his best friends. Even though this whole situation sucks, he's pretty damn glad he has him around. He'd hate to think if Dick was gone, too, after all.