Unpopular opinion: I think all the Till's weird behavior like doing porn, Lindemann project when sometime he totally crosses the line of art and sh*t, self harm, masochism and hurting himself in every way which some of fans call funny stuff is not funny in real life and it's all because... he is very lonely (?)
Maybe he is more emotional than some of fans think and he feels like no one understand him because most of people see him as a monster or crazy guy.
For me Till has a strong relationship with Flake just because Flake is very humble and he understand Till very much.
Schneider said many times that Till liked to disappear during working on albums which means Till is introvert. He likes nature, poetry and animals. Maybe he was hurt in the past and that's why he doesn't like to show his emotional and nice side?
He poses as big strong guy trying to be scary.
I like Till more as a humble and funny guy who smile than a guy who still try to prove that he can and he seems like he is obsessed with girls.