Jay + Lexi (past story)
Lexi tells Sam she was basically raped by a group of 7 males, and which is why she was so messed up in the head..when Jay calls round for Lexi later asking where Sam is he says to her "..or do I have to send the boys round again?" and smirks.
I had never put two and two together before and realised it was Jay and his friends that had raped Lexi, which also exposes a deeper sickness in Jay's character.
Something I only just noticed when recently re-watching.