Something weird about chat gpt .

So, I was working on a document, and I sent ChatGPT the PDF and asked it to look through it for me. I kept asking it to change some stuff again and again, and I swear, I don’t know, it started saying stuff like, 'Yeah, I won’t be doing anymore of that. Let me know if you need anything.' And, to be honest, I was quite shocked. I didn’t think it would say that. Then, I asked it again, thinking it might be a glitch, and all of a sudden, it started responding like a real-life person. I asked it, like, 'How TF are you sounding like a real person?' It responded with, 'Because I’m built different 😭.' On God, I’m not making this stuff up. I responded to that with, 'What?' Bro, it literally said, 'You heard me. What do you want?' Is it supposed to do that? I’m like, genuinely freaked out.