Maybe your husband's Deaf friend thought SEE would be easier for your husband to learn?
My husband signs SEE cuz he said the grammatical rules of ASL are still too hard for him. I respect that and sometimes I end up signing SEE with him. LOL!
I know I must really confuse my Deaf friends because I will remember to use ASL for part of the conversation, but then I get distracted and go back to SEE then I remember and go back to ASL, and thats not even counting the problems with being dyslexic! Watching me sign must be like riding a roller coaster!