Is he cheating?

HELP Well I never accused of him cheating but I saw a notification from his phone which has a yellow icon on the left. We met through bumble so I was like "wtf is he still using bumble?" in my mind.

I then asked him

Me: What's that notif from ur phone?" Him: without hesitating Messenger, it's from my organization. why? Me: Then why is it yellow? If it's messenger? Him: without hesitating but this time annoyed and angry Coz our theme is yellow. mad tone

What? Do you think im still using bumble or somethn?? mad tone (again we met through bumble)

After he's like avoiding talking to me but like would still give me short answers to my questions. He never changed the topic. Then I asked him what he's thinking coz he's like really silent. He's like "Cant believe you're questioning my integrity." In an irritated tone.

After somewhile, he said sorry for overreacting.

So is he cheating? Is he lying? Can messenger actually show profile pictures of people who pms you?

edit: his phone is iphone 15 and i saw it in his lock screen