[ Over protective people tend not to ask permission first anyway! ]

What's important is that you like him, which you seem to. [ Like he gets the whole family idea ssssort of, but this will take some work. He can fake it well enough, but that's all he's got for now. ]

Well, then! It seems like it would be fun to have everyone help with the next big event like this, wouldn't it? That's something families do together. [ Human behavior may be baffling, but it's not inobvious. ]