Yeah, it's like people who eat meat. Or drink alcohol. Or don't use social media. Or do whatever thing that it different from that you've personally decided is acceptable.
In this case it's very explicit - an individual who is seeking out an AI chatbot for a romantic relationship probably would significantly benefit from conforming more to social norms rather than just giving up entirely and going off the deep end.
If someone loves Jesus, an imaginary stuffed animal, or a volleyball named Wilson and they get a sense of fulfillment or connection from it, then good for them. Life is short and fundamentally meaningless so anything that reduces suffering and increases enjoyment should be celebrated.