I'd agree with Lexie. There is something about having your spouse/partner/whatever with you in a meeting that closes BOTH of you off from really experiencing what is going on in the meeting.
It's like traveling alone versus going with someone else. If you have that comfortable person to relate to, you tend to go back to the "default setting" of engaging with him/her rather than the less familiar, perhaps anxiety-inducing situation around you. If you're by yourself, your are going to have to engage with the people you meet, even though they are strangers. And isn't that the whole reason you went, to experience something different and to learn and grow?
Not to mention that one of the huge things at meetings is to be totally honest in your sharing. It is difficult for the sharer to do this if what he/she says is going to cause blowback from the listener sitting right there beside them.
Let him start standing on his own 2 feet NOW. Going to meetings with him is going to make it all the more difficult to stay out of his business and mind your own side of the street (I say this as someone who attended a Buddhist-flavored recovery group w/her A in the early days--it was not a great idea...).