I think my boyfriend is using AI in our messages

When my boyfriend and I met on hinge, I was 90% sure he was a bot. All of his messages were perfectly formatted, zero spelling errors or grammar problems.

Eventually we started doing phone calls and we met in person, which proved he was real. Finally he started texting like a real person- making human errors and using slang. We chat great in person, and when he's texting like a person we get along great too.

Tonight I was really sad so I reached out to him for comfort, and he responded with something that I'm 99% sure was AI. It was the "perfect" response. Completely neutral, just repeating what I said back in an affirming way, like- "i understand that this event would make you upset. It's difficult when this event happens."

And again, perfectly formatted. It completely took me out of it, and it made me feel like he couldn't put in the effort to come up with a response himself.

He's a really intelligent guy- he's in college. He could be just that smart that he doesn't make errors when he tries not to. But I just have a feeling. I have no idea how to bring this up to him.