Sister at the masjid always asks about my mother – is it wrong to feel annoyed?

Assalamu alaikum. I recently started coming to the masjid and have been trying to attend the weekly halaqa regularly. The first time, I was really nervous so my mother came with me. Since then, it's just me going alone. The sister who runs these sessions went to school with my mother – they weren't close or anything, just knew of each other. Anyway, I've been enjoying my time at the masjid, but every time I go, this sister asks me why my mother isn't there. I tell her she's working, and she seems a little disappointed each time. She asks me every single week. My mother even noticed the first time that the sister kept looking at her, because I told her she always asks about her. Am I wrong to feel annoyed? I just want her to ask about me instead of my mother. I also don't get why she keeps asking every week. They barely knew each other in school. Some people said she's just being polite, but it's every week. The first time she asked, which was my second visit and the first without my mother, she asked where my mother was and then how old I am. She also asked if I work. I know she has a son two years older than me, and some suggested it might be about that, but I doubt it. The sister also points out that I'm still new, which makes me uncomfortable – like I don't fit in. I haven't been coming long, but I'm trying my best to attend regularly. It feels a bit off-putting when she keeps saying I'm new.