the way all of ten's companions leave the doctor in journey's end thinking he's going to be more than fine because he's got his best friend with him and they've all got that just-saved-the-world glow only for ten to look like that when rose kisses tentoo when just before (in a deleted scene) donna had assured rose that she would be there to keep the doctor company while the doctor is already anticipating that he's going to have to wipe donna's memory?? oh idk what rtd was feeding us to make us go this feral because he sure as hell wasn't feeding us happy fucking endings