My manager pulled me up today again about something really petty and silly. She told me off for not saying good morning to her for a few days yet she never says it I always smile at her anyway she kept ranting on about how I keep so called avoiding her when I've been busy at work doing other things and she knows that, also saying how I keep walking past her saying nothing and mentioned that I walked past her 3-4 times and said nothing I think she's over reacting, I'm not their to be her friend but to work baring in mind she's about 20+ years older than me and she's miserable as hell, I heard her talking about me and I was about a meter away she was moaning about me because I was sat talking to someone is her problem I dunno if to laugh or cry she picks at the most trivial thing! it's not like I'm not doing my ing job I'm not sure if we just clash either.... Advice plz? I get on really well with most of the other women at the office.