Started a new job in sept in retail which I really enjoy. Get on with all the girls really well. Then in Monday one started to give me the silent treatment (very mature, she's 42 single no kids) it appeared it was over 2 weeks holiday I had booked as she wanted the same dates. (All Holliday I take is in kids holidays) She raised it with the a manager who told me the reason she was being off (she has made it very obvious she does want to talk to me and will go out if her way to move to another end if the shop if I go anywhere near her. Manager had a word about her attitude yesterday. However the silent treatment continued. So I asked it have a chat she said she has no problem and that I was being paranoid. She has also deleted me from Facebook but left all other colleagues on. So what would you do? I'm a 37 year old mum of 2 and really don't want this type of childish behaviour. All colleagues have noticed that she's ignoring me! Really am felling totally fed up :( best bit is she's been allowed the holiday now so I'm at a loss as to what to do/think