I have been working at this office for less than a year, small office with around 5 people any given day. One of my coworkers, an older lady who is actually the company founders sister has been ignoring me. I remember she started this when I was in the bathroom just peeing and the phone started ringing. I was the only salesperson in the office so because I was in the bathroom I couldnt pick up the phone. I hear her outside the bathroom door yelling to herself “why is the phone ringing does no one want to do their job” I come out the bathroom and she starts offloading on me saying how the phones been ringing all day, even though I have been answering it all day and the one time I missed a call was when I had to pee. I gave her a glare like “who are you talking to like that” and just calmly said I was in the bathroom. Ever since then she hasnt said a word to me. Is this a common thing? It seems like no one else in the office notices the petty behavior, and honestly the biggest issue I have is hearing everyone else talk to her and she will be chatting up a storm but walks past me like im invisible lol.