What happen to my mil's video?

My husband and i took my kids and mil to a nearby river acess ooint with no services and only us at the river. My mil took a few videos and then asked me to record her and my son tubing. I pressed record and video them coming which was less than 1 min and i stop the video. I turn and took 3 more pics of my baby son then set on the side along with our stuff. We didnt touch her photo since then. Until we got home she says her videos got deleted and only see the picture she took on the ride home. Confused, i googled everything to help her locate her videos. Then she said " well someome mustve deleted it" but we were the only one there. Then she went home and sent a screenshot. It seems the videos are shown on the "reels" i have never touch reels before so idk how that works. And she then sent me this message which hurts me because i have no resons to delete it. She is the type to be very negative and a narcissistic. I just suck up to her every day which i dont mind because i love her as my own mom. But how can i help locate her videos if we cant find it anywhere??? And we even look in the trash bin and the files..