In this penultimate episode of I May Destroy You, "Would You Like to Know the Sex?", we see Arabella reinvent herself, Terry find herself and Kwame love himself
"In too deep." It's a common phrase that can cross a few lines in terms of meaning. It can mean you're emotionally invested too much. It can mean you're dangerously in too much, like going undercover. These are gradients and there are Welcome to the eighth episode of I May Destroy You (HBO) titled "Line Spectrum Border".