Friends curious girlfriend

Got on the bus a couple days ago. When I got on I saw a friend and his girlfriend. He said hi Jeff he's always called me Jeff it doesn't bother me. His girlfriend looked him said his name is Jarrod. I didn't think nothing of it I nodded my head at him like I always do.I sat about two seats behind them neither one of us said anything to each other while him and his girlfriend talk to one of their friends in the seat across all from them. I rode on the bus for about 25 to 30 minutes I yelled to the bus driver next stop please. When I got up and started to walk past their seat I turned sideways to make it down the aisle. The girlfriend was staring at me directly into my eyes as if she was seeing through them into my soul and she did not blink once. When I blinked and look back at her her eyes wasn't looking at my eyes anymore she was staring dead into my crotch with an ear to ear smile. I didn't say nothing neither did she or the boyfriend and I just went on about my day to work.