English Bull dog behavior

Question
My question is why does Bear (my English bull dog) only get serious, aggressive, and sometimes try to bite my husband only?

He is a full breed English bull dog and I have had him since he was a pup a 6 or 7 weeks old. At that time my husband was deployed to Iraq. It is now 4 years later and Bear is starting the crazy behavior.  My husband and I can't be intimate (ie. kiss, hug, etc) or anything with out Bear growling at my husband.  He separates us and even forces his way to sleep between us.  I blame myself for babying him and spoiling in the beginning but how else are you supposed to love you pets when they are separated from their mother.  I feel that some how this is all my fault and I don't know where to start to make it better.  My husband once home from deployment (7 months later) has showed equal love and care for Bear but this dog seems to have it out for my husband.  It is getting to the point that I am afraid to be in the same room with both of them together but I still do and when I enter Bear is the first to head in my direction. Now on the flip side, if I am not home my husband an bear are inseparable, they play, cuddle,basically everything that I would do if was just me and bear. We do have 3 children but bear for some reason is not interested in them unless he has to go out side or eat.  How should I start to address this behavior?

Answer
Bear sees himself as Number One in your household; this is rank opportunism at its worst.  You have psychologically promoted this dog (not your fault at all, it's quite common) and, while many dogs who are thus promoted can live perfectly peaceably with all family members, yours is not one of them.

Aggression of any sort in the English Bull Dog is totally unacceptable but, because this breed has become so popular, more and more of its numbers are being bred by people who know nothing, and care less, for profit alone.  That dog does not belong in your bedroom.  But your problem is far more serious than mere suggestions in a text box can repair.  Not only is he actively aggressive, but you have young children in the house who may, once he is being psychologically demoted, innocently fall into line for this aggression.  You need a certified applied animal behaviorist (not a Neanderthal dog trainer who will use abusive techniques and make this situation even more dangerous.)  Call the veterinary college in your geographical area and get referral.  This is a case where the dog can be seen in the clinic and not necessarily in your home.  A full interview must be done with you and your husband and your children must be observed with the dog.  Hands on evaluation of the dog must be made.  You need to be instructed in positive reinforcement training and carefully taught how to use behavior modification to put this dog in his "place".  No one can safely tell you how to do this in a text box.