My wife deleted all of the pictures of my son’s biological mother off my phone.

My son’s biological mother shot herself in the head in front of me. Recently I started therapy to process this. I probably had 10 pictures on my phone of her and 4 of her and my son she died when he was 37 days old. I went through my phone recently and noticed all of the photos but one of her holding my son are gone. Not in the recently deleted gone. What could have been going through her brain to think that this was ok? I have one picture of her on my phone now. I have some things saved at my parents house for my son a few Polaroids and ultrasounds I am glad I haven’t told her about those. But what the actual fuck!!