Tbh at 30 years old in those divisions with two wins in 2 years id say yeah he is done. That said whatever you think about him, he has achieved something and can walk away with his health and hopefully some cash.
They did fall out Sunny was pretty clear on it iirc. No idea what over, they're both still close to their mum and she's very ill so hopefully it's not a family matter. Not that it's anything to do with me