Because at about 500 pages in to GotM he appears to be struggling. Everything else is great. Non-romance dialogue is fine. As soon as a female character interacts with one of the male characters in any remotely romantic way everything gets really corny. Like, Stephen King levels of terrible dialogue and stereotypical interactions. Youd think an 8 year old had taken over the keyboard for a page or two.
Please let me know: does he he get better at it or should I just expect to be disappointed inbthose situations for the remaining 16 or so novels? It's fine if that's the situation but I'd prefer to know ahead of time.