Stiles when...he was trying to explain to Liam that you were dating him. Liam had a small crush on you which didn't go unnoticed by your super attentive boyfriend. Stiles decided that before you found out, even though nothing would happen, he would just talk to Liam.
'If I find you near Y/N, I'm going to kill you. And believe me, I could get away with it. My dads the sheriff.'