bf being shady ?

Sooooo recently I went threw my bf older phone (the one he use to use before he upgraded) and found at least 60 photos of girls naked and in bikinis... a few of the girls are my friends... when I asked him about it he kept saying it was for his friends and he should have deleted them cause they were old... he still has tinder installed in his phone and then I found the 'safe app' I tried to get into it but couldn't figure out the pattern... then a few nights ago i noticed on his newer phone he has the same app... when I asked him what's in it he said there's nothing so I asked him to unlock it if it had nothing in it like he claimed this went on for hours and after getting nowhere I started packing my stuff cause I was going to leave... right before I went to leave he said it was awkward to show me because he had "videos" in the app for ages ago and he wasn't sure if he deleted it or not... I am so mad about the 'videos' being in there and him even needing those on his phone ... he still wouldn't show me what's in the app... am I in the wrong for wanting to know what's in it and for being angry about videos ?