I don't think it's wrong on your part but i can see where he's coming from if all he saw in his family was divorce, etc. You said you've been dating for a year already, how close are you guys? Do you live together? Srry to ask so many questions but im j/a to see because some people go out for a long time but don't really 'know' each other, do you know what i mean? A year is a good amount of time but you still can have a little more time to get to know each other better and you guys will both learn a lot from each other, especially if you are living together. Some ppl like to do a test living together to see how well they can stand each other's habits, etc. For some couples it can be for the better and for some for the worse. I definetly think it's good what you are doing by talking about it to him so that he knows it is something you want, you are being upfront about it and that's good. I just suggest see how things go within the next year, how you guys get along and also seeing a relationship counselor is a good idea.
