by yourself (слэш)

"Matteo is like a weed that won’t stop growing, little petals flowering between David’s ribs and fingers and heart-strings. David is good at pulling weeds. He has made an art of being rootless.
But these weeds grow deep. And every time he thinks he’s removed them all, another one grows."
(Or, Druck s3 from David's POV, through ep 5 clip 2).