how to make him realize he’s wrong :(

So my ex just left me this week, he claims I been seeing someone and been texting another person when I Have Not!

I’ve been home all day everyday, we even had the location app on each other, he says that doesn’t matter,

I have every single proof to prove I’ve been home but he won’t listen to me.. I don’t want to end things because I love him and don’t know what to do..