There's this one girl at work. We don't have any history of conflict ect and we actually work in different departments. I'm relatively new to the establishment and the industry. But when we do come in to contact she's snappy towards me and gives dirty looks. I haven't witnessed her act like this towards others. Immature I know and I probably should just ignore it but this behaviour really upsets me and makes me feel so uneasy and self conscious to the point where I under perform due to being upset. I don't know what to do... Aibu to want to leave this workplace or even for letting it bother me?