younger sister's relationship - mixed feelings

Same here! I watch over my sister like a hawk! She is still a baby to me and I don't want any guy hurting her! In fact, when it's time to get her married, I want to evaluate the guy before she gets to know him! haha

Yeah I think you should stalk this guy and see what he's upto. Sometimes we have better instincts than our parents about guys from our own generation. Also, quiet guys really give me the creeps! I mean why can't they open up??