Do you think an AI girlfriend would ruin a human relationship?

My ex bf got super into AI and chatgtp and it ended up weirding me out. He would use it to respond to my texts, write me poetry where he said AI "helped". He used it to shortcut everything and took the credit. I know it's not like having a relationship with it, but it felt like he sunk into that world and forgot what was real. Like he didn't realize I could tell it was fake and I got sidelined by the expectation to normalize his lack of effort and thought.

AI bothers me. I get told every time I mention it how helpful it is. Like okay I get it, but also no thanks.