I used to be such a fan of Gabby back when I was around 16-18, and I actually ran into her and Jane at M&S the one time I was visting London in 2015 (I’m Scandinavian). It was such a coincidence, but she was quite nice to me, and we had a little chat about the touristy things me and my mother had been doing in London, watching musicals etc.
I remember being quite surprised when she told me she hadn’t watched any of the shows my mom and I had seen on our trip, including Les Mis, since she always talked about her being such a huge musical-fan online, as well as living in London where she had access to all the shows. Being a total fangirl back then, I also wanted a photo with her, which I got. I think the whole meeting lasted about a minute.
Of course, my perspective of her has changed quite a lot over the years, as I myself grew older, as well as I started to see more of her true personality shine through online, seeing how she treated her audience and her response to actual critisism.
Now, over to my point: I’d say I’m quite tall, and even though I have grown a little bit since I was that age, I was still about 175 cm (think that's5’9?) back then when I met her. I remember her being a little shorter than me, but there is NO WAY she was 5’3, even with heels on. I’ll add the photo, so you can make up your own mind (please ignore my horrible sense of style back then).