Boxers NEED the affection of their ppl. I'm a pro dog trainer and behaviorist and I'm telling you its fine to love them up, but there does need to be balance. You have to be a firm leader.
As for Ceasar Milan....those on here that know me know how I feel about him, but as you're new I'll share. Ceasae Milan IS NOT a dog trainer. He is a behaviorist. Behaviorist's come in a fix a problem that is already occuring. He is also one of those behaviorist's that uses old outdated techniques. He puts trainers and behaviorists back 20 yrs. Some of his advice is good and much like I will/have/do tell my own clients, but he methods are neandrathol at best.
I'm not the only person on the board that feels this way about him (just ask Jennifer [Newcastle]). Anyways, I've ranted enough...
Hope this helps...If you want something more specific to tell the b/f (like the negative side effects of lack of attentention/affection) let me know...
***This post is not meant to offend anyone. It is for informational purposes. Any opinions expressed about televised behaviorists or trainers are my own.***