Fair to say Hawkeye and Charles considered each other unspoken friends?

I never really got much of a friendship vibe between Charles and BJ...but it seemed to me that beneath the barbs Hawk and Charles might exchange there certainly was respect for each others skills and a friendship but each wee too pig headed in their own ways...Charles because he was naturally snooty and hard to overcome a lifetime of that and Hawkeye because he his "preconditioned" not to like the third swampmate. Remember in Charles first episode he says something like "can we just jump right to hating him now".

I always liked the later years best when Charles was on the same side as the others and getting along with them.