My gf (f23) found an old video of me (m22) with an ex and wont talk to me now.

I am my gfs first partner, she is my second. The girl I dated prior (for 6 months) was a vlogger and for like 3 months made a lotta relationship and prank videos wth me which I was fine with at the time. Now my current gf is my first ever real crush and Ive been into her for a decade....