I M A Friend Of A Friend Of A Friend

I have a friend who when I felt comfortable enough to show some sketches too. They went quiet then opened their phone and showed me a plethora of sketches they had made which were amazing.
They are very talented.
But
I just don’t get why they chose that moment to show me. They didn’t comment at all in mine. The moment was suddenly all about them.
I didn’t get it.