I didn't talk to too many bots but I talked to a lot of janitor ai bots because they are free.
The "personality" doesn't exist for any of them. All janitor ai bots ultimately are made of the same source Code.
None of the bots was able to hold their "Personality" for longer then 10 minutes and as a User you can always manipulate the AI into doing whatever you wish it to do.
This shows further how "abstract" personality is.
Also personality over a chat is missing many fundamental parts of what a human let alone a partner (eg. "AI girlfriend/boyfriend") make out to be.
ANOTHER thing is - without a body its kinda...shit.
Like for me the AI bots never worked because the conversations I can also simply generate in my own brain instantly and faster then to rely on talking to a virtual source chat.
I guess I am just too intelligent, or possess too much fantasy, for these kinda things.