What is this woman’s issue with me at work?

I’m a 28 year old female and I have recently started a new job a few weeks ago and I’m in my second week of induction. There is this 50 odd year old woman who sits next to me and her behaviour towards me is making me feel very uncomfortable and giving me bad anxiety. She keeps asking me very odd personal questions about my personal life and my love life. The other day we went round the group telling people what we got up to at the weekend, I said I went to a house party then a club and then she said “did you meet anyone special at the club? Are you actively looking for a relationship right now?”. Then I felt really upset because she made me divulge information about a traumatic past relationship I had and she manipulated the information from me and I regretted ever telling her anything but she was being so pushy and prying for information from me I ended up telling her.

Another thing I’ve noticed is she will constantly be staring at me when she’s sat next to me. We will all be on Teams calls and she won’t be looking at the screen she will just be focusing on me. She glances over at me constantly and looks at my screen to watch what I’m doing instead of focusing on her own work. Today I was sneezing and a man sat next to me offered me allergy tablets and tissues and she said “what was he giving you was he giving you drugs?”. I like to dress presentable too and I come into the office in nice dresses and smart work attire. She will always look me up and down from head to toe and then say stuff like “you always wear so many nice dresses” and then say “I just wear joggers and black jeans to work”.

Today she completely ignored me the whole day spoke to other colleagues and just gave me judgmental looks all day long and then at the end of the day said “you’ve been quiet today is everything ok?”

It’s slowly driving me crazy and making me feel so scrutinised. What should I do about this situation?

What is this woman’s issue with me at work?
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