What should I do??

I’ve been dating this guy for about 3 months.. on our 4th date I realized he had a girl as his screensaver.. I asked him about it. He said it’s a friend who died.. I didn’t quite believe it.. now 2 months later I ask to see his phone. He’s acting like he has something to hide... I go through his message I see calls from the girl who “died” he tried to lie and say it wasn’t her.. then 20mins later.. he tells me she’s not dead. (Which I already knew) Then he says he only said she was dead because. He caught her having sex with someone else... he’s not flirting with her or anything.. or really talking to her..

I feel hurt. Because that’s something he could told me... I feel like he’s hiding more. I feel like I cant trust him.

Which sucks cause I realllllyyy liked him 😫