Should I be so bothered

Okay I've been married to my husband for almost 9 months now and we are completely happy and neither of has have any worries. I'm not sure if I just get bothered easily or what but one of his ex girlfriends which is my best friends sister always when she sees me asks me how my hauabnd is or says she seen him. Would that bother you? I just don't see the point in always telling me you seen my husband. What do you woman think?